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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 2021
Or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                       to                      
cmcsa-20210331_g1.jpg
Commission File Number
Exact Name of Registrant; State of
Incorporation; Address and Telephone
Number of Principal Executive Offices
I.R.S. Employer Identification No.
001-32871
COMCAST CORPORATION
27-0000798
Pennsylvania
One Comcast Center
Philadelphia, PA 19103-2838
(215286-1700

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Class A Common Stock, $0.01 par valueCMCSANASDAQ Global Select Market
0.250% Notes due 2027CMCS27NASDAQ Global Market
1.500% Notes due 2029CMCS29NASDAQ Global Market
0.750% Notes due 2032CMCS32NASDAQ Global Market
1.875% Notes due 2036CMCS36NASDAQ Global Market
1.250% Notes due 2040CMCS40NASDAQ Global Market
9.455% Guaranteed Notes due 2022CMCSA/22New York Stock Exchange
5.50% Notes due 2029CCGBP29New York Stock Exchange
2.0% Exchangeable Subordinated Debentures due 2029CCZNew York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding twelve months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer
Accelerated filer
Non-accelerated filer
Smaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes No
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date:
As of March 31, 2021, there were 4,584,571,926 shares of Comcast Corporation Class A common stock and 9,444,375 shares of Class B common stock outstanding.



TABLE OF CONTENTS
  
  
Page
Number
Item 1.
Item 2.
Item 3.
Item 4.
Item 1.
Item 1A.
Item 6.
 
Explanatory Note
This Quarterly Report on Form 10-Q is for the three months ended March 31, 2021. This Quarterly Report on Form 10-Q modifies and supersedes documents filed before it. The U.S. Securities and Exchange Commission (“SEC”) allows us to “incorporate by reference” information that we file with it, which means that we can disclose important information to you by referring you directly to those documents. Information incorporated by reference is considered to be part of this Quarterly Report on Form 10-Q. In addition, information that we file with the SEC in the future will automatically update and supersede information contained in this Quarterly Report on Form 10-Q.
Unless indicated otherwise, throughout this Quarterly Report on Form 10-Q, we refer to Comcast and its consolidated subsidiaries, as “Comcast,” “we,” “us” and “our;” Comcast Cable Communications, LLC and its consolidated subsidiaries as “Comcast Cable;” Comcast Holdings Corporation as “Comcast Holdings;” NBCUniversal Media, LLC and its consolidated subsidiaries as “NBCUniversal;” and Sky Limited and its consolidated subsidiaries as “Sky.”
CAUTION CONCERNING FORWARD-LOOKING STATEMENTS
This Quarterly Report on Form 10-Q includes statements that may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are not historical facts or statements of current conditions, but instead represent only our beliefs regarding future events, many of which, by their nature, are inherently uncertain and outside of our control. These may include estimates, projections and statements relating to our business plans, objectives and expected operating results, which are based on current expectations and assumptions that are subject to risks and uncertainties that may cause actual results to differ materially. These forward-looking statements are generally identified by the words “believe,” “project,” “expect,” “anticipate,” “estimate,” “intend,” “potential,” “strategy,” “future,” “opportunity,” “commit,” “plan,” “may,” “should,” “could,” “will,” “would,” “will be,” “will continue,” “will likely result” and similar expressions.
In evaluating forward-looking statements, you should consider various factors, including the risks and uncertainties we describe in the “Risk Factors” sections of our Forms 10-K and 10-Q and other reports we file with the SEC. Additionally, we operate in a highly competitive, consumer-driven and rapidly changing environment. This environment is affected by government regulation; economic, strategic, political and social conditions; consumer response to new and existing products and services; technological developments; and the ability to develop and protect intellectual property rights. Any of these factors could cause our actual results to differ materially from our forward-looking statements, which could adversely affect our businesses, results of operations or financial condition. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date they are made. We undertake no obligation to update or revise publicly any forward-looking statements, whether because of new information, future events or otherwise.



Our businesses may be affected by, among other things, the following:
the COVID-19 pandemic has had, and will likely continue to have, a material adverse effect on our businesses and results of operations
our businesses operate in highly competitive and dynamic industries, and our businesses and results of operations could be adversely affected if we do not compete effectively
changes in consumer behavior driven by online video distribution platforms for viewing content continue to adversely affect our businesses and challenge existing business models
a decline in advertisers’ expenditures or changes in advertising markets could negatively impact our businesses
programming expenses for our video services are increasing, which could adversely affect Cable Communications’ video businesses
NBCUniversal’s and Sky’s success depends on consumer acceptance of their content, and their businesses may be adversely affected if their content fails to achieve sufficient consumer acceptance or the costs to create or acquire content increase
the loss of programming distribution and licensing agreements, or the renewal of these agreements on less favorable terms, could adversely affect our businesses
less favorable European telecommunications access regulations, the loss of Sky’s transmission access agreements with satellite or telecommunications providers or the renewal of these agreements on less favorable terms could adversely affect Sky’s businesses
our businesses depend on using and protecting certain intellectual property rights and on not infringing the intellectual property rights of others
we may be unable to obtain necessary hardware, software and operational support
weak economic conditions may have a negative impact on our businesses
acquisitions and other strategic initiatives present many risks, and we may not realize the financial and strategic goals that we had contemplated
we face risks relating to doing business internationally that could adversely affect our businesses
our businesses depend on keeping pace with technological developments
we rely on network and information systems and other technologies, as well as key properties, and a disruption, cyber attack, failure or destruction of such networks, systems, technologies or properties may disrupt our businesses
the loss of key management personnel or popular on-air and creative talent could have an adverse effect on our businesses
we are subject to regulation by federal, state, local and foreign authorities, which impose additional costs and restrictions on our businesses
unfavorable litigation or governmental investigation results could require us to pay significant amounts or lead to onerous operating procedures
labor disputes, whether involving employees or sports organizations, may disrupt our operations and adversely affect our businesses
our Class B common stock has substantial voting rights and separate approval rights over several potentially material transactions, and our Chairman and CEO has considerable influence over our company through his beneficial ownership of our Class B common stock



Table of Contents
PART I: FINANCIAL INFORMATION
ITEM 1: FINANCIAL STATEMENTS
Comcast Corporation
Condensed Consolidated Statement of Income
(Unaudited)
 Three Months Ended
March 31,
(in millions, except per share data)20212020
Revenue$27,205 $26,609 
Costs and Expenses:
Programming and production8,919 8,301 
Other operating and administrative8,269 8,254 
Advertising, marketing and promotion1,616 1,938 
Depreciation2,117 2,107 
Amortization1,245 1,157 
Total costs and expenses22,166 21,757 
Operating income5,039 4,852 
Interest expense(1,018)(1,212)
Investment and other income (loss), net390 (716)
Income before income taxes4,411 2,924 
Income tax expense(1,119)(700)
Net income3,292 2,224 
Less: Net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock (37)77 
Net income attributable to Comcast Corporation$3,329 $2,147 
Basic earnings per common share attributable to Comcast Corporation shareholders$0.73 $0.47 
Diluted earnings per common share attributable to Comcast Corporation shareholders$0.71 $0.46 
See accompanying notes to condensed consolidated financial statements.
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Condensed Consolidated Statement of Comprehensive Income
(Unaudited) 
 Three Months Ended
March 31,
(in millions)20212020
Net income$3,292 $2,224 
Currency translation adjustments, net of deferred taxes of $(92) and $(7)
(35)(2,157)
Cash flow hedges:
Deferred gains (losses), net of deferred taxes of $(19) and $10
119 54 
Realized (gains) losses reclassified to net income, net of deferred taxes of $ and $17
 (106)
Employee benefit obligations and other, net of deferred taxes of $2 and $3
(10)(7)
Comprehensive income3,366 8 
Less: Net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock(37)77 
Less: Other comprehensive income (loss) attributable to noncontrolling interests(14)(25)
Comprehensive income (loss) attributable to Comcast Corporation$3,417 $(44)
See accompanying notes to condensed consolidated financial statements.
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Condensed Consolidated Statement of Cash Flows
(Unaudited) 
 Three Months Ended
March 31,
(in millions)20212020
Operating Activities
Net income$3,292 $2,224 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization3,362 3,264 
Share-based compensation373 298 
Noncash interest expense (income), net62 227 
Net (gain) loss on investment activity and other(239)791 
Deferred income taxes28 (120)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net554 198 
Film and television costs, net393 3 
Accounts payable and accrued expenses related to trade creditors(198)(727)
Other operating assets and liabilities124 (334)
Net cash provided by operating activities7,751 5,824 
Investing Activities
Capital expenditures(1,859)(1,881)
Cash paid for intangible assets(612)(618)
Construction of Universal Beijing Resort(428)(371)
Acquisitions, net of cash acquired(147)(194)
Proceeds from sales of businesses and investments388 17 
Purchases of investments(52)(69)
Other98 15 
Net cash provided by (used in) investing activities(2,612)(3,101)
Financing Activities
Proceeds from borrowings192 9,281 
Repurchases and repayments of debt(124)(7,439)
Repurchases of common stock under employee plans(309)(233)
Dividends paid(1,080)(977)
Other(577)(258)
Net cash provided by (used in) financing activities(1,898)374 
Impact of foreign currency on cash, cash equivalents and restricted cash(33)(77)
Increase (decrease) in cash, cash equivalents and restricted cash3,208 3,020 
Cash, cash equivalents and restricted cash, beginning of period11,768 5,589 
Cash, cash equivalents and restricted cash, end of period$14,976 $8,609 
See accompanying notes to condensed consolidated financial statements.
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Condensed Consolidated Balance Sheet
(Unaudited)
(in millions, except share data)March 31,
2021
December 31,
2020
Assets
Current Assets:
Cash and cash equivalents$14,950 $11,740 
Receivables, net10,986 11,466 
Other current assets3,502 3,535 
Total current assets29,438 26,741 
Film and television costs12,983 13,340 
Investments7,889 7,820 
Investment securing collateralized obligation487 447 
Property and equipment, net of accumulated depreciation of $54,793 and $54,388
52,317 51,995 
Goodwill70,106 70,669 
Franchise rights59,365 59,365 
Other intangible assets, net of accumulated amortization of $20,885 and $19,825
34,861 35,389 
Other noncurrent assets, net11,065 8,103 
Total assets$278,511 $273,869 
Liabilities and Equity
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors$11,148 $11,364 
Accrued participations and residuals1,619 1,706 
Deferred revenue3,376 2,963 
Accrued expenses and other current liabilities9,891 9,617 
Current portion of long-term debt4,777 3,146 
Total current liabilities30,811 28,796 
Long-term debt, less current portion98,936 100,614 
Collateralized obligation5,168 5,168 
Deferred income taxes28,260 28,051 
Other noncurrent liabilities20,690 18,222 
Commitments and contingencies
Redeemable noncontrolling interests and redeemable subsidiary preferred stock546 1,280 
Equity:
Preferred stock—authorized, 20,000,000 shares; issued, zero
  
Class A common stock, $0.01 par value—authorized, 7,500,000,000 shares; issued, 5,457,362,954 and 5,444,002,825; outstanding, 4,584,571,926 and 4,571,211,797
55 54 
Class B common stock, $0.01 par value—authorized, 75,000,000 shares; issued and outstanding, 9,444,375
  
Additional paid-in capital39,744 39,464 
Retained earnings58,321 56,438 
Treasury stock, 872,791,028 Class A common shares
(7,517)(7,517)
Accumulated other comprehensive income (loss)1,972 1,884 
Total Comcast Corporation shareholders’ equity92,575 90,323 
Noncontrolling interests1,525 1,415 
Total equity94,100 91,738 
Total liabilities and equity$278,511 $273,869 
See accompanying notes to condensed consolidated financial statements.
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Condensed Consolidated Statement of Changes in Equity
(Unaudited)
Three Months Ended
March 31,
(in millions, except per share data)20212020
Redeemable Noncontrolling Interests and Redeemable Subsidiary Preferred Stock
Balance, beginning of period$1,280 $1,372 
Redemption of subsidiary preferred stock(725) 
Contributions from (distributions to) noncontrolling interests, net
(27)(27)
Other(10)(153)
Net income (loss)28 67 
Balance, end of period$546 $1,259 
Class A Common Stock
Balance, beginning of period$54 $54 
Issuances of common stock under employee plans1  
Balance, end of period$55 $54 
Additional Paid-In Capital
Balance, beginning of period$39,464 $38,447 
Stock compensation plans296 212 
Repurchases of common stock under employee plans(88)(93)
Employee stock purchase plans62 54 
Other10 (23)
Balance, end of period$39,744 $38,597 
Retained Earnings
Balance, beginning of period$56,438 $50,695 
Cumulative effects of adoption of accounting standards
 (124)
Repurchases of common stock under employee plans(289)(142)
Dividends declared(1,161)(1,064)
Other4 4 
Net income (loss)3,329 2,147 
Balance, end of period$58,321 $51,516 
Treasury Stock at Cost
Balance, beginning of period$(7,517)$(7,517)
Balance, end of period$(7,517)$(7,517)
Accumulated Other Comprehensive Income (Loss)
Balance, beginning of period$1,884 $1,047 
Other comprehensive income (loss)88 (2,191)
Balance, end of period$1,972 $(1,144)
Noncontrolling Interests
Balance, beginning of period$1,415 $1,148 
Other comprehensive income (loss)(14)(14)
Contributions from (distributions to) noncontrolling interests, net
189 120 
Other 13 
Net income (loss)(65)10 
Balance, end of period$1,525 $1,277 
Total equity$94,100 $82,783 
Cash dividends declared per common share$0.25 $0.23 
See accompanying notes to condensed consolidated financial statements.
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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
Note 1: Condensed Consolidated Financial Statements
Basis of Presentation
We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, cash flows and financial condition for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.
The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2020 Annual Report on Form 10-K and the notes within this Form 10-Q.
Reclassifications
Reclassifications have been made to our notes to condensed consolidated financial statements for the prior year period to conform to classifications used in 2021. See Note 2 for a discussion of the changes in our presentation of segment operating results.
Note 2: Segment Information
In the first quarter of 2021, we changed our presentation of segment operating results. We now present our operations in five reportable business segments: (1) Comcast Cable in one reportable business segment, referred to as Cable Communications; (2) NBCUniversal in three reportable business segments: Media, Studios and Theme Parks (collectively, the “NBCUniversal segments”); and (3) Sky in one reportable business segment. The changes reflect a reorganized operating structure in NBCUniversal’s television and streaming businesses and primarily include: (i) the combination of NBCUniversal’s television networks (previously reported in Cable Networks and Broadcast Television) with the operations of Peacock (previously reported in Corporate and Other) in the Media segment, and (ii) the presentation of NBCUniversal’s television studio production operations (previously reported in Cable Networks and Broadcast Television) with the studio operations of Filmed Entertainment in the Studios segment. Prior periods have been adjusted to reflect this presentation.
Cable Communications is a leading provider of broadband, video, voice, wireless, and security and automation services to residential customers under the Xfinity brand; we also provide these and other services to business customers and sell advertising. Revenue is generated primarily from residential and business customers that subscribe to our services, which are marketed individually and as bundled services, and from the sale of advertising.
Media consists primarily of NBCUniversal’s television and streaming platforms, including national, regional and international cable networks; the NBC and Telemundo broadcast networks; NBC and Telemundo owned local broadcast television stations; Peacock, our direct-to-consumer streaming service; and various digital properties. Revenue is generated primarily from the sale of advertising on our television networks, Peacock and digital properties; and the fees received from the distribution of our television network programming to traditional and virtual multichannel video providers and from NBC-affiliated and Telemundo-affiliated local broadcast television stations. Media also generates other revenue from various digital properties.
Studios consists primarily of NBCUniversal’s film and television studio production and distribution operations. Revenue is generated primarily from the licensing of our owned film and television content to broadcast, cable and premium networks, and to direct-to-consumer streaming service providers, as well as through video on demand and pay-per-view services provided by multichannel video providers and over-the-top service providers; from the worldwide distribution of our produced and acquired films for exhibition in movie theaters; and from the sale of owned content on DVDs, Blu-ray discs and through digital distribution services.
Theme Parks consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan. In addition, we are developing a theme park in Beijing, China along with a consortium of Chinese state-owned companies, and an additional theme park in Orlando, Florida. Revenue is generated primarily from guest spending at our Universal theme parks.
Sky is one of Europe’s leading entertainment companies, which primarily includes a direct-to-consumer business, providing video, broadband, voice and wireless phone services, and a content business, operating entertainment networks, the Sky News broadcast network and Sky Sports networks. Revenue is generated primarily from residential and business customers that
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subscribe to our services; from the distribution of Sky’s owned television networks on third-party platforms and the licensing of owned and acquired programming to third-party video providers; and from the sale of advertising.
Our other business interests consist primarily of the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania, and other business initiatives.
We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to Comcast Corporation excluded from Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.
 Three Months Ended March 31, 2021
(in millions)
Revenue(a)
Adjusted EBITDA(b)
Depreciation and Amortization
Capital
Expenditures
Cash Paid for Intangible Assets
Cable Communications$15,805 $6,830 $1,929 $1,370 $315 
NBCUniversal
Media5,036 1,473 247 10 32 
Studios2,396 497 12 1 2 
Theme Parks619 (61)207 126 6 
Headquarters and Other16 (209)117 35 28 
Eliminations(a)
(1,043)(210)   
NBCUniversal7,024 1,490 583 172 68 
Sky4,997 364 814 271 201 
Corporate and Other89 (281)36 46 28 
Eliminations(a)
(710)10    
Comcast Consolidated$27,205 $8,413 $3,362 $1,859 $612 
 Three Months Ended March 31, 2020
(in millions)
Revenue(a)
Adjusted EBITDA(b)
Depreciation and Amortization
Capital
Expenditures
Cash Paid for Intangible Assets
Cable Communications$14,918 $6,076 $1,946 $1,269 $356 
NBCUniversal
Media4,878 1,529 243 31 38 
Studios2,409 300 17 4 1 
Theme Parks925 87 190 296 15 
Headquarters and Other9 (221)116 46 41 
Eliminations(a)
(492)(6)   
NBCUniversal7,729 1,689 566 377 95 
Sky4,517 551 718 197 166 
Corporate and Other120 (193)34 38 1 
Eliminations(a)
(675)7    
Comcast Consolidated$26,609 $8,130 $3,264 $1,881 $618 
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(a)Included in Eliminations are transactions that our segments enter into with one another. Our segments generally report transactions with one another as if they were stand-alone businesses in accordance with GAAP, and these transactions are eliminated in consolidation. When multiple segments enter into transactions to provide products and services to third parties, revenue is generally allocated to our segments based on relative value. The most significant transactions between our segments include distribution revenue at Media for fees received from Cable Communications for the sale of cable network programming and under retransmission consent agreements; content licensing revenue at Studios for licenses of owned content to Media and Sky; and advertising revenue at Media and Cable Communications. Revenue for licenses of content from Studios to Media and Sky is generally recognized at a point in time, consistent with the recognition of transactions with third parties, when the content is delivered and made available for use. The costs of these licenses at Media and Sky are recognized as the content is used over the license period. The difference in timing of recognition between segments results in an Adjusted EBITDA impact in eliminations, as the profits (losses) on these transactions are deferred in our consolidated results and recognized as the content is used over the license period. Under the previous segment structure, revenue for licenses of content between our previous NBCUniversal segments was recognized over time to correspond with the amortization of the costs of licensed content over the license period.
A summary of revenue for each of our segments resulting from transactions with other segments and eliminated in consolidation is presented in the table below.
Three Months Ended
March 31,
(in millions)20212020
Cable Communications$45 $42 
NBCUniversal
Media540 544 
Studios1,089 540 
Theme Parks1  
Headquarters and Other12 2 
Sky8 2 
Corporate and Other58 37 
Total intersegment revenue$1,753 $1,167 
(b)We use Adjusted EBITDA as the measure of profit or loss for our operating segments. From time to time we may report the impact of certain events, gains, losses or other charges related to our operating segments (such as certain costs incurred in response to COVID-19, including severance charges), within Corporate and Other. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.
 Three Months Ended
March 31,
(in millions)
20212020
Adjusted EBITDA$8,413 $8,130 
Adjustment for Sky transaction-related costs(12)(14)
Depreciation(2,117)(2,107)
Amortization(1,245)(1,157)
Interest expense
(1,018)(1,212)
Investment and other income (loss), net390 (716)
Income before income taxes$4,411 $2,924 
Goodwill by Segment
The changes in the carrying amount of goodwill by segment for the quarter ended March 31, 2021 are as follows:
  NBCUniversal  
(in billions)Cable
Communications
Cable
Networks
Broadcast
Television
Filmed
Entertainment
MediaStudiosTheme
Parks
SkyCorporate
and Other
Total
Balance, December 31, 2020$15.3 $14.0 $1.1 $3.3 $ $ $7.0 $30.0 $ $70.7 
Segment change (14.0)(1.1)(3.3)14.7 3.7     
Foreign currency translation and other0.1      (0.4)(0.3) (0.6)
Balance, March 31, 2021$15.4 $ $ $ $14.7 $3.7 $6.6 $29.7 $ $70.1 

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Note 3: Revenue
Three Months Ended
March 31,
(in millions)20212020
Residential:
Broadband$5,600 $5,001 
Video5,623 5,632 
Voice871 899 
Wireless513 343 
Business services2,167 2,043 
Advertising618 557 
Other413 443 
Total Cable Communications15,805 14,918 
Advertising2,094 2,167 
Distribution2,495 2,287 
Other447 424 
Total Media5,036 4,878 
Content licensing2,075 1,819 
Theatrical39 316 
Home entertainment and other 282 274 
Total Studios2,396 2,409 
Total Theme Parks619 925 
Headquarters and Other16 9 
Eliminations(a)
(1,043)(492)
Total NBCUniversal7,024 7,729 
Direct-to-consumer4,065 3,679 
Content358 325 
Advertising574 513 
Total Sky4,997 4,517 
Corporate and Other89 120 
Eliminations(a)
(710)(675)
Total revenue$27,205 $26,609 
(a)Included in Eliminations are transactions that our segments enter into with one another. See Note 2 for a description of these transactions.
We operate primarily in the United States but also in select international markets. The table below summarizes revenue by geographic location.
Three Months Ended
March 31,
(in millions)20212020
United States$21,156 $20,690 
Europe5,352 5,033 
Other697 886 
Total revenue$27,205 $26,609 
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Condensed Consolidated Balance Sheet
The following tables summarize our accounts receivable and other balances that are not separately presented in our condensed consolidated balance sheet that relate to the recognition of revenue and collection of the related cash, as well as the deferred costs associated with our contracts with customers.
(in millions)March 31,
2021
December 31,
2020
Receivables, gross$11,764 $12,273 
Less: Allowance for doubtful accounts778 807 
Receivables, net$10,986 $11,466 
(in millions)March 31,
2021
December 31,
2020
Noncurrent receivables, net (included in other noncurrent assets, net)$1,061 $1,091 
Contract acquisition and fulfillment costs (included in other noncurrent assets, net)$1,048 $1,060 
Noncurrent deferred revenue (included in other noncurrent liabilities)$726 $750 
Note 4: Programming and Production Costs
Three Months Ended
March 31,
(in millions)20212020
Video distribution programming$3,515 $3,215 
Film and television content:
Owned(a)
1,964 2,127
   Licensed, including sports rights3,175 2,664
Other265 295
Total programming and production costs$8,919 $8,301 
(a) Amount includes amortization of owned content of $1.6 billion and $1.8 billion for the three months ended March 31, 2021 and 2020, respectively, as well as participations and residuals expenses.
Capitalized Film and Television Costs
(in millions)March 31, 2021December 31,
2020
Owned:
Released, less amortization$3,885 $3,815 
Completed, not released626 139 
In production and in development2,369 2,755 
6,880 6,709 
Licensed, including sports advances6,103 6,631 
Film and television costs$12,983 $13,340 
Note 5: Long-Term Debt
As of March 31, 2021, our debt had a carrying value of $103.7 billion and an estimated fair value of $117.8 billion. As of December 31, 2020, our debt had a carrying value of $103.8 billion and an estimated fair value of $125.6 billion. The estimated fair value of our publicly traded debt was primarily based on Level 1 inputs that use quoted market value for the debt. The estimated fair value of debt for which there are no quoted market prices was based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities.
In March 2021, we entered into a new $11 billion revolving credit facility due March 30, 2026 with a syndicate of banks that may be used for general corporate purposes. We may increase the commitments under the revolving credit facility up to a total of $14 billion, as well as extend the expiration date to no later than March 30, 2028, subject to approval of the lenders. The interest rate on the revolving credit facility consists of a base rate plus a borrowing margin that is determined based on Comcast’s credit rating. As of March 31, 2021, the borrowing margin for borrowings based on the London Interbank Offered Rate was 1.00%. Our revolving credit facility requires that we maintain certain financial ratios based on debt and EBITDA, as defined in the revolving credit facility. We were in compliance with all financial covenants for all periods presented. The new
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revolving credit facility replaced an aggregate $9.2 billion of existing revolving credit facilities due May 26, 2022, which were terminated. Our revolving credit facilities were undrawn as of both March 31, 2021 and December 31, 2020.
Note 6: Significant Transactions
Universal Beijing Resort
We entered into an agreement with a consortium of Chinese state-owned companies to build and operate a Universal theme park and resort in Beijing, China (“Universal Beijing Resort”). We own a 30% interest in Universal Beijing Resort and the construction is being funded through a combination of debt financing and equity contributions from the investors in accordance with their equity interests. As of March 31, 2021, Universal Beijing Resort had $3.0 billion of debt outstanding, including $2.7 billion principal amount of a term loan under the debt financing agreement.
As of March 31, 2021, our condensed consolidated balance sheet included assets and liabilities of Universal Beijing Resort, totaling $8.5 billion and $6.8 billion, respectively. The assets and liabilities of Universal Beijing Resort primarily consist of property and equipment, operating lease assets and liabilities, and debt.
Note 7: Investments
Investment and Other Income (Loss), Net
 Three Months Ended
March 31,
(in millions)20212020
Equity in net income (losses) of investees, net$136 $(668)
Realized and unrealized gains (losses) on equity securities, net
237 (58)
Other income (loss), net17 10 
Investment and other income (loss), net$390 $(716)
The amount of unrealized gains (losses) recognized in the three months ended March 31, 2021 and 2020 that related to marketable and nonmarketable equity securities still held as of the end of each reporting period were gains of $98 million and losses of $59 million, respectively.
(in millions)March 31,
2021
December 31,
2020
Equity method$6,048 $6,006 
Marketable equity securities260 460 
Nonmarketable equity securities2,021 1,950 
Other investments130 143 
Total investments8,459 8,559 
Less: Current investments83 292 
Less: Investment securing collateralized obligation487 447 
Noncurrent investments$7,889 $7,820 
Equity Method
Atairos
Atairos follows investment company accounting and records its investments at their fair values each reporting period with the net gains or losses reflected in its statement of operations. We recognize our share of these gains and losses in equity in net income (losses) of investees, net. For both the three months ended March 31, 2021 and 2020, we made cash capital contributions to Atairos totaling $12 million. As of both March 31, 2021 and December 31, 2020, our investment in Atairos was $3.9 billion.
Hulu and Collateralized Obligation
In 2019, we borrowed $5.2 billion under a term loan facility due March 2024 which is fully collateralized by the minimum guaranteed proceeds of the put/call option related to our investment in Hulu. As of March 31, 2021 and December 31, 2020, the carrying value and fair value of our collateralized obligation were $5.2 billion. The estimated fair value was based on Level 2 inputs that use interest rates for debt with similar terms and remaining maturities. We present our investment in Hulu and the term loan separately in our condensed consolidated balance sheet in the captions “investment securing collateralized obligation”
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and “collateralized obligation,” respectively. The recorded value of our investment reflects our historical cost in applying the equity method, and as a result, is less than its fair value.
Note 8: Equity and Share-Based Compensation
Weighted-Average Common Shares Outstanding
Three Months Ended
March 31,
(in millions)20212020
Weighted-average number of common shares outstanding – basic4,591 4,562 
Effect of dilutive securities74 55 
Weighted-average number of common shares outstanding – diluted4,665 4,617 
Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. The amount of potential common shares related to our share-based compensation plans that were excluded from diluted EPS because their effect would have been antidilutive was not material in any of the periods presented.
Accumulated Other Comprehensive Income (Loss)
(in millions)March 31,
2021
December 31,
2020
Cumulative translation adjustments$1,769 $1,790 
Deferred gains (losses) on cash flow hedges10 (109)
Unrecognized gains (losses) on employee benefit obligations and other193 203 
Accumulated other comprehensive income (loss), net of deferred taxes$1,972 $1,884 
Share-Based Compensation
Our share-based compensation plans consist primarily of awards of RSUs and stock options to certain employees and directors as part of our approach to long-term incentive compensation. Additionally, through our employee stock purchase plans, employees are able to purchase shares of our common stock at a discount through payroll deductions.
In March 2021, we granted 12.8 million RSUs and 42.3 million stock options related to our annual management awards. The weighted-average fair values associated with these grants were $54.62 per RSU and $9.64 per stock option.
Recognized Share-Based Compensation Expense
 Three Months Ended
March 31,
(in millions)20212020
Restricted share units$206 $141 
Stock options90 71 
Employee stock purchase plans11 12 
Total$307 $224 
As of March 31, 2021, we had unrecognized pretax compensation expense of $1.6 billion and $821 million related to nonvested RSUs and nonvested stock options, respectively.
Note 9: Supplemental Financial Information
Cash Payments for Interest and Income Taxes
 Three Months Ended
March 31,
(in millions)20212020
Interest$911 $991 
Income taxes$87 $281 
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Noncash Activities
During the three months ended March 31, 2021:
we recognized operating lease assets and liabilities of $2.7 billion related to Universal Beijing Resort with lease terms of 33 years and using a weighted average discount rate of 4.4%
we acquired $1.6 billion of property and equipment and intangible assets that were accrued but unpaid
we recorded a liability of $1.2 billion for a quarterly cash dividend of $0.25 per common share paid in April 2021
During the three months ended March 31, 2020:
we acquired $1.6 billion of property and equipment and intangible assets that were accrued but unpaid
we recorded a liability of $1.1 billion for a quarterly cash dividend of $0.23 per common share paid in April 2020
Cash, Cash Equivalents and Restricted Cash
The following table provides a reconciliation of cash, cash equivalents and restricted cash reported in the condensed consolidated balance sheet to the total of the amounts reported in our condensed consolidated statement of cash flows.
(in millions)March 31,
2021
December 31,
2020
Cash and cash equivalents$14,950 $11,740 
Restricted cash included in other current assets12 14 
Restricted cash included in other noncurrent assets, net14 14 
Cash, cash equivalents and restricted cash, end of period$14,976 $11,768 
Note 10: Commitments and Contingencies
Redeemable Subsidiary Preferred Stock
In the first quarter of 2021, we redeemed all of the NBCUniversal Enterprise, Inc. preferred stock and made cash payments equal to the aggregate liquidation preference of $725 million. As of December 31, 2020, the preferred stock had a carrying value equal to its liquidation preference and was presented in redeemable noncontrolling interests and redeemable subsidiary preferred stock.
Contingencies
We are subject to legal proceedings and claims that arise in the ordinary course of our business. While the amount of ultimate liability with respect to such actions is not expected to materially affect our results of operations, cash flows or financial position, any litigation resulting from any such legal proceedings or claims could be time-consuming and injure our reputation.
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ITEM 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion is provided as a supplement to, and should be read in conjunction with, the condensed consolidated financial statements and related notes included in this Quarterly Report on Form 10-Q and our 2020 Annual Report on Form 10-K.
Overview
We are a global media and technology company with three primary businesses: Comcast Cable, NBCUniversal, and Sky. We present our operations for (1) Comcast Cable in one reportable business segment, referred to as Cable Communications; (2) NBCUniversal in three reportable business segments: Media, Studios and Theme Parks (collectively, the “NBCUniversal segments”); and (3) Sky in one reportable business segment. Refer to Note 2 for information on our reportable segments, including a description of the segment change implemented in the first quarter of 2021. All amounts are presented on a consistent basis under the new segment structure.
Impacts of COVID-19
The novel coronavirus disease 2019 (“COVID-19”) and measures taken to prevent its spread across the globe have impacted our businesses in a number of ways. COVID-19 has had, and we expect will continue to have, material negative impacts on NBCUniversal and Sky results of operations primarily due to the temporary restrictions and closures at our theme parks and the impacts of professional sports, respectively. We expect the impacts of the COVID-19 pandemic will continue to have a material adverse impact on our consolidated results of operations over the near to medium term, although the extent of such impact will depend on restrictive governmental measures, further deterioration of the global economy, widespread availability and acceptance of vaccines and consumer behavior in response to COVID-19. The most significant effects of COVID-19 began in the second half of the first quarter of 2020. The following summary provides a discussion of current and potential future effects of the pandemic with direct impacts to our businesses.
Cable Communications
Beginning in March 2020 and continuing through June 2021, new qualifying customers for Internet Essentials, our low-income internet adoption program, receive 60 days of free broadband services. Our customer metrics do not include customers in the free Internet Essentials offer or certain high-risk customers who continued to receive service following nonpayment as a result of COVID-19 programs. The number of customers excluded from our customer metrics has continued to decrease as some of these customers either began paying for service, resulting in customer net additions, or disconnected and no longer receive service, and we expect this to continue in future periods. We also believe there continues to be a risk associated with collections on customer accounts.
NBCUniversal
In the first quarter of 2021, our theme parks in Orlando and Japan were open with limited capacity while our park in Hollywood remained closed. In April 2021, our theme park in Hollywood reopened with limited capacity, but our theme park in Japan has temporarily closed. The limited capacity and closure of our theme parks had a significant impact on our revenue and Adjusted EBITDA for the three months ended March 31, 2021 on a consolidated basis. We expect the results of operations at our theme parks will continue to be negatively impacted and we cannot predict if any parks will remain open or the level of attendance at our reopened parks. We currently expect that Universal Beijing Resort will open during summer 2021 and we have resumed the development of the Epic Universe theme park in Orlando in the first quarter of 2021.
Delays to the start of current seasons for certain professional sports leagues, including the NHL and NBA, resulted in the shift of additional events into the first quarter of 2021, which impacted the timing of revenue and expense recognition, since both advertising revenue and costs associated with broadcasting these programs are recognized when events are broadcast. We also expect additional events in the second quarter of 2021 compared to the same period in the prior year. We cannot predict the ultimate timing of when, or the extent to which, sporting events will occur in future periods. In addition, the 2020 Tokyo Olympics have been postponed from the third quarter of 2020 to the third quarter of 2021, resulting in a corresponding delay of the associated revenue and costs.
Our studio production operations have resumed, with some at a limited capacity. Additionally, with the temporary closure and limited-capacity operation of many movie theaters worldwide, we have delayed or altered the theatrical distribution strategy for certain of our films, both domestically and internationally. Delays in theatrical releases will affect both current and future periods as a result of corresponding delays in subsequent content licensing windows. We expect results of operations in our Studios segment to continue to be negatively impacted over the near to medium term as a result of COVID-19.
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Sky
Direct-to-consumer revenue has been negatively impacted, and future periods may be negatively impacted, as a result of lower sports subscription revenue due to the extent of reopening of our commercial customers. In addition, delays to the start of the current seasons for certain sports, including European football, resulted in the shift of additional events and the significant costs associated with broadcasting these programs into the first quarter of 2021. We also expect additional events in the second quarter of 2021 compared to the same period in the prior year. We cannot predict the ultimate timing of when, or the extent to which, sporting events will occur in future periods.
In 2020, our businesses implemented separate cost savings initiatives, with the most significant relating to severance at NBCUniversal in connection with the realignment of the operating structure in our television businesses as well as overall reductions in the cost base. The costs of these initiatives were presented in Corporate and Other. Payments related to NBCUniversal employee severance are expected to be completed in 2021 and the related costs savings will be realized in operating costs and expenses primarily beginning in 2021. A portion of these cost savings may be reallocated to investments in content and other strategic initiatives.
Consolidated Operating Results
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions, except per share data)20212020%
Revenue$27,205 $26,609 2.2 %
Costs and Expenses:
Programming and production8,919 8,301 7.5 
Other operating and administrative
8,269 8,254 0.2 
Advertising, marketing and promotion
1,616 1,938 (16.6)
Depreciation2,117 2,107 0.5 
Amortization
1,245 1,157 7.6 
Operating income5,039 4,852 3.8 
Interest expense (1,018)(1,212)(16.0)
Investment and other income (loss), net
390 (716)154.6 
Income before income taxes4,411 2,924 50.9 
Income tax expense
(1,119)(700)59.9 
Net income3,292 2,224 48.0 
Less: Net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock(37)77 (147.8)
Net income attributable to Comcast Corporation
$3,329 $2,147 55.1 %
Basic earnings per common share attributable to Comcast Corporation shareholders
$0.73 $0.47 55.3 %
Diluted earnings per common share attributable to Comcast Corporation shareholders
$0.71 $0.46 54.3 %
Adjusted EBITDA(a)
$8,413 $8,130 3.5 %
All percentages are calculated based on actual amounts. Minor differences may exist due to rounding. Percentage changes that are considered not meaningful are denoted with NM.
(a)Adjusted EBITDA is a non-GAAP financial measure. Refer to the “Non-GAAP Financial Measures” section on page 24 for additional information, including our definition and our use of Adjusted EBITDA, and for a reconciliation from net income attributable to Comcast Corporation to Adjusted EBITDA.
Consolidated Revenue
Cable Communications, Sky and Media drove increases in consolidated revenue for the three months ended March 31, 2021, which were partially offset by decreases in revenue in Theme Parks and Studios.
Revenue for our segments and other businesses is discussed separately below under the heading “Segment Operating Results.”
Consolidated Costs and Expenses
Sky, Media and Cable Communications drove increases in consolidated operating costs and expenses for the three months ended March 31, 2021, which were partially offset by decreases in operating costs and expenses in Studios and Theme Parks.
Operating costs and expenses for our segments and our corporate operations, businesses development initiatives and other businesses are discussed separately below under the heading “Segment Operating Results.”
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Consolidated Depreciation and Amortization Expense
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020%
Cable Communications$1,929 $1,946 (0.9)%
NBCUniversal583 566 3.0 
Sky814 718 13.3 
Corporate and Other36 34 6.4 
Comcast Consolidated$3,362 $3,264 3.0 %
Consolidated depreciation and amortization expense increased for the three months ended March 31, 2021 primarily due to increased amortization expense at Sky due to the impact of foreign currency.
Amortization expense from acquisition-related intangible assets totaled $592 million and $575 million for the three months ended March 31, 2021 and 2020, respectively. Amounts primarily relate to customer relationship intangible assets recorded in connection with the Sky transaction in the fourth quarter of 2018 and the NBCUniversal transaction in 2011.
Consolidated Interest Expense
Interest expense decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to a $140 million charge recorded in the prior year period related to the early redemption of senior notes, as well as lower weighted-average interest rates in the current year period.
Consolidated Investment and Other Income (Loss), Net
 Three Months Ended
March 31,
(in millions)20212020
Equity in net income (losses) of investees, net$136 $(668)
Realized and unrealized gains (losses) on equity securities, net
237 (58)
Other income (loss), net17 10 
Total investment and other income (loss), net$390 $(716)
The change in investment and other income (loss) net for the three months ended March 31, 2021 compared to the same period in 2020 was primarily due to equity in net income (losses) of investees, net related to our investment in Atairos Group, Inc. and realized and unrealized gains (losses) on equity securities, net related to fair value adjustments for nonmarketable equity securities. The income (losses) at Atairos were driven by fair value adjustments on its underlying investments with income of $77 million and losses of $581 million for the three months ended March 31, 2021 and 2020, respectively.
Consolidated Income Tax Expense
Income tax expense for the three months ended March 31, 2021 and 2020 reflects an effective income tax rate that differs from the federal statutory rate primarily due to state and foreign income taxes and adjustments associated with uncertain tax positions. The increase in income tax expense for the three months ended March 31, 2021 compared to the same period in 2020 was primarily due to higher income before income taxes.
Segment Operating Results
Our segment operating results are presented based on how we assess operating performance and internally report financial information. We use Adjusted EBITDA as the measure of profit or loss for our operating segments. See Note 2 for our definition of Adjusted EBITDA and a reconciliation from the aggregate amount of Adjusted EBITDA for our reportable business segments to consolidated income before income taxes.
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Cable Communications Segment Results of Operations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue
Residential:
Broadband$5,600 $5,001 $599 12.0 %
Video5,623 5,632 (9)(0.2)
Voice871 899 (28)(3.1)
Wireless513 343 170 49.7 
Business services2,167 2,043 124 6.1 
Advertising618 557 61 10.8 
Other413 443 (30)(6.7)
Total revenue15,805 14,918 887 5.9 
Operating costs and expenses
Programming3,670 3,479 191 5.5 
Technical and product support2,021 2,012 0.4 
Customer service602 637 (35)(5.5)
Advertising, marketing and promotion905 954 (49)(5.2)
Franchise and other regulatory fees501 406 95 23.4 
Other1,276 1,354 (78)(5.8)
Total operating costs and expenses8,975 8,842 133 1.5 
Adjusted EBITDA
$6,830 $6,076 $754 12.4 %
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Customer Metrics
 Net Additions
 March 31,Three Months Ended
March 31,
(in thousands)2021202020212020
Customer relationships
Residential customer relationships
31,062 29,483 370 360 
Business services customer relationships
2,437 2,408 11 11 
Total customer relationships33,499 31,891 380 371 
Residential customer relationships mix
One product customers
12,997 10,775 589 554 
Two product customers
8,645 8,848 (89)(75)
Three or more product customers
9,420 9,860 (130)(119)
Broadband
Residential customers
28,774 26,854 448 466 
Business services customers
2,261 2,226 12 11 
Total broadband customers31,034 29,080 461 477 
Video
Residential customers
18,590 19,900 (404)(388)
Business services customers
765 944 (87)(22)
Total video customers19,355 20,845 (491)(409)
Voice
Residential customers
9,533 9,840 (112)(94)
Business services customers
1,363 1,347 
Total voice customers10,896 11,187 (106)(89)
Wireless
Wireless lines3,103 2,267 278 216 
Customer metrics are presented based on actual amounts. Minor differences may exist due to rounding. Customer relationships represent the number of residential and business customers that subscribe to at least one of our services. One product, two product, and three or more product customers represent residential customers that subscribe to one, two, or three or more of our services, respectively. For multiple dwelling units (“MDUs”), including buildings located on college campuses, whose residents have the ability to receive additional services, such as additional programming choices or our high-definition video (“HD”) or digital video recorder (“DVR”) services, we count and report customers based on the number of potential billable relationships within each MDU. For MDUs whose residents are not able to receive additional services, the MDU is counted as a single customer. Residential broadband and video customer metrics include certain customers that have prepaid for services. Business customers are generally counted based on the number of locations receiving services within our distribution system, with certain offerings such as Ethernet network services counted as individual customer relationships. Wireless lines represent the number of activated, eligible wireless devices on customers’ accounts. Individual customer relationships may have multiple wireless lines. Customer metrics for 2021 and 2020 do not include customers in the free Internet Essentials offer or certain high-risk customers who continued to receive service following nonpayment (refer to “Impacts of COVID-19” for further discussion). Total residential customer relationships and broadband customers were updated in the first quarter of 2021 due to a conforming change to methodology, resulting in a reduction of approximately 26,000 customers. There was no impact to net additions and information for all periods presented have been recast on a comparable basis.
Three Months Ended
March 31,
Increase/(Decrease)
20212020%
Average monthly total revenue per customer relationship$158.17 $156.84 0.8 %
Average monthly Adjusted EBITDA per customer relationship$68.35 $63.88 7.0 %
Average monthly total revenue per customer relationship is impacted by rate adjustments and changes in the types and levels of services received by our residential and business services customers, as well as changes in advertising revenue. While revenue from our residential broadband, video and voice services is also impacted by changes in the allocation of revenue among services sold in a bundle, the allocation does not impact average monthly total revenue per customer relationship.
Each of our services has a different contribution to operating margin and we also use average monthly Adjusted EBITDA per customer relationship to evaluate the profitability of our customer base across our service offerings. We believe these metrics are useful to understand the trends in our business and average monthly Adjusted EBITDA per customer relationship is useful particularly as we continue to focus on growing our higher-margin businesses, including residential broadband and business services.
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Cable Communications Segment – Revenue
Broadband
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020 due to an increase in the number of residential broadband customers and an increase in average rates.
Video
Revenue was flat for the three months ended March 31, 2021 compared to the same period in 2020 due to a decline in the number of residential video customers, offset by an increase in average rates. We expect that the number of residential video customers will continue to decline, negatively impacting video revenue as a result of the competitive environment and shifting video consumption patterns.
Voice
Revenue decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to a decrease in the number of residential voice customers. We expect that the number of residential voice customers and voice revenue will continue to decline.
Wireless
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to increases in the number of customer lines and sales of devices.
Business Services
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to an increase in average rates and an increase in the number of customers receiving our services.
Advertising
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to an increase in revenue from our advanced advertising business and from recent acquisitions.
Other
Revenue decreased for the three months ended March 31, 2021 compared to the same period in 2020 due to decreases in certain billing and collection fees and a decrease in revenue from our security and automation business.
Cable Communications Segment – Operating Costs and Expenses
Programming expenses increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to an increase in retransmission consent fees, partially offset by a decline in the number of video customers. We anticipate that our programming expenses will be impacted by rate increases to a greater extent in 2021 compared to 2020 due to the timing of contract renewals, partially offset by expected declines in the number of residential video customers.
Technical and product support expenses were flat for the three months ended March 31, 2021 compared to the same period in 2020 due to increased costs associated with our wireless phone service, offset by lower personnel costs.
Customer service expenses decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to lower labor costs as a result of cost savings initiatives and reduced call volumes.
Advertising, marketing and promotion expenses decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to a decrease in the costs associated with attracting new customers and promoting our service offerings.
Franchise and other regulatory fees increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to an increase in regulatory costs.
Other operating costs and expenses decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to a decrease in bad debt expense.
Cable Communications Segment – Operating Margin
Our operating margin is Adjusted EBITDA as a percentage of revenue. We believe this metric is useful particularly as we continue to focus on growing our higher-margin businesses, including residential broadband and business services, and on improving overall operating cost management.
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Our operating margin for the three months ended March 31, 2021 and 2020 was 43.2% and 40.7%, respectively. The most significant operating costs and expenses are the programming expenses we incur to provide content to our video customers, which increased 5.5% for the three months ended March 31, 2021 compared to the same period in 2020.
NBCUniversal Segments Results of Operations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue
Media$5,036 $4,878 $158 3.2 %
Studios2,396 2,409 (13)(0.6)
Theme Parks619 925 (306)(33.1)
Headquarters and Other16 85.9 
Eliminations(1,043)(492)(551)(111.5)
Total revenue$7,024 $7,729 $(705)(9.1)%
Adjusted EBITDA
Media$1,473 $1,529 $(56)(3.7)%
Studios497 300 197 65.7 
Theme Parks(61)87 (148)(170.9)
Headquarters and Other(209)(221)12 5.7 
Eliminations(210)(6)(204)NM
Total Adjusted EBITDA$1,490 $1,689 $(199)(11.8)%

Media Segment Results of Operations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue
Advertising$2,094 $2,167 $(73)(3.4)%
Distribution2,495 2,287 208 9.1 
Other447 424 23 5.3 
Total revenue5,036 4,878 158 3.2 
Operating costs and expenses
Programming and production2,522 2,268 254 11.2 
Other operating and administrative819 840 (21)(2.5)
Advertising, marketing and promotion222 241 (19)(7.9)
Total operating costs and expenses3,563 3,349 214 6.4 
Adjusted EBITDA$1,473 $1,529 $(56)(3.7)%
Media Segment – Revenue
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020 due to increases in distribution revenue and other revenue, partially offset by a decrease in advertising revenue. Distribution revenue increased due to contractual rate increases, partially offset by declines in the number of subscribers at our networks. Other revenue increased primarily due to an increase in revenue from our digital properties. Advertising revenue decreased primarily due to continued audience ratings declines at our networks, partially offset by higher prices for advertising units sold, an increase in the number of units sold related to sports and an increase in advertising revenue at Peacock. We expect the number of subscribers and audience ratings at our networks to continue to decline as a result of the competitive environment and shifting video consumption patterns. Revenue included $91 million related to Peacock for the three months ended March 31, 2021.
Media Segment – Operating Costs and Expenses
Operating costs and expenses increased for the three months ended March 31, 2021 compared to the same period in 2020 due to an increase in programming and production costs, partially offset by decreases in other operating and administrative costs and advertising, marketing and promotion costs. Programming and production costs increased primarily due to higher amortization expense related to programming at Peacock. Programming and production costs at our television networks increased slightly, reflecting higher sports programming costs driven by an increase in the number of sporting events offset by a decrease in
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entertainment programming costs from delays in production due to COVID-19. Other operating and administrative costs decreased due to cost savings initiatives, partially offset by increased costs related to Peacock. Advertising, marketing and promotion costs decreased due to lower spending on marketing related to our networks, partially offset by higher marketing related to Peacock. Operating costs and expenses included $368 million and $59 million related to Peacock for the three months ended March 31, 2021 and 2020, respectively, and we expect to continue to incur significant costs related to additional content and marketing for the new platform.
Studios Segment Results of Operations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue
Content licensing$2,075 $1,819 $256 14.1 %
Theatrical39 316 (277)(87.7)
Home entertainment and other282 274 2.8 
Total revenue2,396 2,409 (13)(0.6)
Operating costs and expenses
Programming and production1,614 1,513 101 6.6 
Other operating and administrative161 213 (52)(24.7)
Advertising, marketing and promotion124 383 (259)(67.6)
Total operating costs and expenses1,899 2,109 (210)(10.0)
Adjusted EBITDA$497 $300 $197 65.7 %
Studios Segment – Revenue
Revenue decreased for the three months ended March 31, 2021 compared to the same period in 2020 due to a decrease in theatrical revenue, offset by an increase in content licensing revenue. Theatrical revenue decreased primarily due to the deferral of theatrical releases due to the temporary closure and limited-capacity operation of many movie theaters due to COVID-19. Content licensing revenue increased primarily due to the timing of when content was made available under licensing agreements, including a new licensing agreement for content that became exclusively available for streaming on Peacock during the quarter.
Studios Segment – Operating Costs and Expenses
Operating costs and expenses decreased for the three months ended March 31, 2021 compared to the same period in 2020 due to decreases in advertising, marketing and promotion costs and other operating and administrative costs, partially offset by an increase in programming and production costs. Advertising, marketing and promotion costs decreased due to lower spending on theatrical film releases in the current year period. Other operating and administrative costs decreased due to cost savings initiatives. Programming and production costs increased primarily due to higher amortization associated with content licensing sales, including the new licensing agreement for content that became exclusively available for streaming on Peacock during the quarter, as well as the impact from the updated accounting guidance related to episodic television series, which was adopted and had a favorable impact on programming and production expense in the prior year period. These increases were partially offset by a decrease in amortization associated with theatrical film releases in the current year period.
Theme Parks Segment Results of Operations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue$619 $925 $(306)(33.1)%
Operating costs and expenses680 838 (158)(18.8)
Adjusted EBITDA$(61)$87 $(148)(170.9)%
Theme Parks Segment – Revenue
Revenue decreased for the three months ended March 31, 2021 compared to the same period in 2020 due to the temporary limited-capacity operation and closures of our theme parks as a result of COVID-19. Our theme parks closed beginning in late February 2020 in Japan and mid-March 2020 in Orlando and Hollywood. Our theme parks in Orlando and Japan reopened with
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limited-capacity in June 2020, while our theme park in Hollywood remained closed through the first quarter of 2021. In April 2021, our theme park in Hollywood reopened with limited capacity, but our theme park in Japan has temporarily closed.
Theme Parks Segment – Operating Costs and Expenses
Operating costs and expenses decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to decreases in costs related to park operations due to the temporary limited-capacity operation and closures and lower marketing-related costs, partially offset by increased pre-opening costs associated with Universal Beijing Resort. We expect to incur significant additional pre-opening costs ahead of the expected opening of Universal Beijing Resort later in 2021.
NBCUniversal Headquarters, Other and Eliminations
Headquarters and Other Results of Operations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue$16 $$85.9 %
Operating costs and expenses225 230 (5)(2.2)
Adjusted EBITDA$(209)$(221)$12 5.7 %
Operating costs and expenses include overhead, personnel costs and costs associated with corporate initiatives.
Eliminations
 Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)20212020$%
Revenue$(1,043)$(492)$551 111.5 %
Operating costs and expenses(833)(486)347 70.9 
Adjusted EBITDA$(210)$(6)$204 NM
Amounts represent eliminations of transactions between our NBCUniversal segments. For the three months ended March 31, 2021, eliminations of revenue and operating costs and expenses increased as a result of licensing of content between our Studios and Media segments, including transactions with Peacock. For the three months ended March 31, 2021 and 2020, approximately 52% and 30% of Studios segment content licensing revenue resulted from transactions with other segments, primarily with the Media segment. Eliminations will increase or decrease to the extent that additional content is made available to our other segments. Refer to Note 2 for further description of transactions between our segments.
Sky Segment Results of Operations
Three Months Ended
March 31,
Increase/
(Decrease)
Constant Currency Growth(a)
(in millions)20212020$%%
Revenue
Direct-to-consumer$4,065 $3,679 $386 10.5 %1.8 %
Content 358 325 33 10.3 1.7 
Advertising574 513 61 11.9 3.4 
Total revenue4,997 4,517 480 10.6 2.0 
Operating costs and expenses
Programming and production 2,485 2,064 421 20.4 10.9 
Direct network costs631 457 174 38.1 28.1 
Other1,517 1,445 72 5.0 (3.1)
Total operating costs and expenses4,633 3,966 667 16.8 7.8 
Adjusted EBITDA
$364 $551 $(187)(33.9)%(39.6)%
All percentages are calculated based on actual amounts. Minor differences may exist due to rounding.
(a)Constant currency growth is a non-GAAP financial measure. Refer to the “Non-GAAP Financial Measures” section on page 24 for additional information, including our definition and our use of constant currency, and for a reconciliation of Sky’s constant currency growth rates.
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Customer Metrics
Net Additions
March 31,Three Months Ended
March 31,
(in thousands)2021202020212020
Total customer relationships23,446 23,216 221 (65)
Customer metrics are presented based on actual amounts. Minor differences may exist due to rounding. Customer relationships represent the number of residential customers that subscribe to at least one of Sky’s four primary services of video, broadband, voice and wireless phone service. Sky reports commercial customers, including hotels, bars, workplaces and restaurants, generally based on the number of locations receiving our services. In the first quarter of 2021, we implemented conforming changes to our methodology for counting commercial customers in Italy and Germany, which are now counted as described above, consistent with customers in the United Kingdom. Previously these customers were counted based on a residential equivalent unit in Italy and the number of active venues or rooms in Germany. This change resulted in a reduction in Sky’s total customer relationships of 714,000 as of December 31, 2020. The impact of the change in methodology to customer relationship net additions for any period was not material. For comparative purposes, we have updated Sky’s historical total customer relationships and average monthly direct-to-consumer revenue per customer relationship to reflect this adjustment.
Three Months Ended
March 31,
Increase/
(Decrease)
Constant
Currency
Growth(a)
20212020%%
Average monthly direct-to-consumer revenue per customer relationship$58.06 $52.76 10.0 %1.4 %
(a)Constant currency growth is a non-GAAP financial measure. Refer to the “Non-GAAP Financial Measures” section on page 24 for additional information, including our definition and our use of constant currency, and for a reconciliation of Sky’s constant currency growth rates.
Average monthly direct-to-consumer revenue per customer relationship is impacted by rate adjustments and changes in the types and levels of services received by Sky’s customers. Each of Sky’s services has a different contribution to Adjusted EBITDA. We believe average monthly direct-to-consumer revenue per customer relationship is useful in understanding the trends in our business across all of our direct-to-consumer service offerings.
Sky Segment – Revenue
Direct-to-Consumer
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020. Excluding the impact of foreign currency, revenue increased primarily due to increases in average revenue per customer relationship and customer relationships.
Content
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020. Excluding the impact of foreign currency, revenue increased primarily due to higher revenue from the distribution of Sky’s sports programming on third-party platforms, reflecting the negative impact of COVID-19 in the prior year period.
Advertising
Revenue increased for the three months ended March 31, 2021 compared to the same period in 2020. Excluding the impact of foreign currency, revenue increased primarily due to higher advanced advertising revenue in the United Kingdom.
Sky Segment – Operating Costs and Expenses
Programming and production costs increased for the three months ended March 31, 2021 compared to the same period in 2020. Excluding the impact of foreign currency, programming and production costs increased primarily due to an increase in the number of sporting events in the current year period due to COVID-19, including the impacts of the delayed starts of the current European football seasons and the disrupted seasons in the first quarter of 2020. We currently hold Italian broadcast rights to Lega Nazionale Professionisti Serie A through the end of the 2020-2021 season. It is uncertain whether we will retain any broadcast or other rights related to future seasons, which would result in a reduction in programming and production costs and may result in a decline in customer relationships in Italy.
Direct network costs increased for the three months ended March 31, 2021 compared to the same period in 2020. Excluding the impact of foreign currency, direct network costs increased primarily due to an increase in costs associated with Sky’s wireless phone and broadband services as a result of increases in the sale of handsets and the number of customers receiving these services.
Other expenses increased for the three months ended March 31, 2021 compared to the same period in 2020. Excluding the impact of foreign currency, other expenses decreased primarily due to lower personnel costs.
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Corporate, Other and Eliminations
Corporate and Other Results of Operations
 
Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)
20212020
$
%
Revenue
$89 $120 $(31)(26.1)%
Operating costs and expenses382 327 55 16.6 
Adjustment for Sky transaction-related costs (12)(14)NM
Adjusted EBITDA
$(281)$(193)$(88)(45.3)%
Percentage changes that are considered not meaningful are denoted with NM.
Corporate and Other – Revenue
Revenue primarily relates to Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania. Revenue decreased for the three months ended March 31, 2021 compared to the same period in 2020 as a result of COVID-19.
Corporate and Other – Operating Costs and Expenses
Operating costs and expenses primarily include overhead, personnel costs, the costs of other business initiatives, and operating costs and expenses associated with Comcast Spectacor.
Expenses increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to increases related to corporate activities and other business initiatives.
Corporate and Other Adjusted EBITDA excludes the Sky transaction-related costs.
Eliminations
 
Three Months Ended
March 31,
Increase/
(Decrease)
(in millions)
20212020
$
%
Revenue
$(710)$(675)$35 5.3 %
Operating costs and expenses(720)(682)38 5.6 
Adjusted EBITDA$10 $7 $(3)(29.0)%
Amounts represent eliminations of transactions between Cable Communications, NBCUniversal, Sky and other businesses. Eliminations of transactions between NBCUniversal segments are presented separately. Refer to Note 2 for a description of transactions between our segments.
Non-GAAP Financial Measures
Consolidated Adjusted EBITDA
Adjusted EBITDA is a non-GAAP financial measure and is the primary basis used to measure the operational strength and performance of our businesses as well as to assist in the evaluation of underlying trends in our businesses. This measure eliminates the significant level of noncash depreciation and amortization expense that results from the capital-intensive nature of certain of our businesses and from intangible assets recognized in business combinations. It is also unaffected by our capital and tax structures, and by our investment activities, including the results of entities that we do not consolidate, as our management excludes these results when evaluating our operating performance. Our management and Board of Directors use this financial measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. Additionally, we believe that Adjusted EBITDA is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure of Adjusted EBITDA may not be directly comparable to similar measures used by other companies.
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We define Adjusted EBITDA as net income attributable to Comcast Corporation before net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock, income tax expense, investment and other income (loss), net, interest expense, depreciation and amortization expense, and other operating gains and losses (such as impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets), if any. From time to time, we may exclude from Adjusted EBITDA the impact of certain events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance.
We reconcile consolidated Adjusted EBITDA to net income attributable to Comcast Corporation. This measure should not be considered a substitute for operating income, net income (loss), net income attributable to Comcast Corporation, or net cash provided by operating activities that we have reported in accordance with GAAP.
Reconciliation from Net Income Attributable to Comcast Corporation to Adjusted EBITDA
 Three Months Ended
March 31,
(in millions)20212020
Net income attributable to Comcast Corporation
$3,329 $2,147 
Net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock
(37)77 
Income tax expense1,119 700 
Investment and other (income) loss, net(390)716 
Interest expense1,018 1,212 
Depreciation2,117 2,107 
Amortization1,245 1,157 
Adjustment for Sky transaction-related costs12 14 
Adjusted EBITDA$8,413 $8,130 
Constant Currency
Constant currency and constant currency growth rates are non-GAAP financial measures that present our results of operations excluding the estimated effects of foreign currency exchange rate fluctuations. Certain of our businesses, including Sky, have operations outside the United States that are conducted in local currencies. As a result, the comparability of the financial results reported in U.S. dollars is affected by changes in foreign currency exchange rates. In our Sky segment, we use constant currency and constant currency growth rates to evaluate the underlying performance of the business, and we believe it is helpful for investors to present operating results on a comparable basis period over period to evaluate its underlying performance.
Constant currency and constant currency growth rates are calculated by comparing the comparative period results in the prior year adjusted to reflect the average exchange rates from the current year period rather than the actual exchange rates in effect during the respective prior year periods.
Reconciliation of Sky Constant Currency Growth Rates
Three Months Ended
March 31,
ActualConstant CurrencyConstant Currency Growth
(in millions, except per customer data)20212020%
Revenue
Direct-to-consumer$4,065 $3,993 1.8 %
Content 358 352 1.7 
Advertising574 555 3.4 
Total revenue4,997 4,900 2.0 
Operating costs and expenses
Programming and production 2,485 2,240 10.9 
Direct network costs631 493 28.1 
Other1,517 1,565 (3.1)
Total operating costs and expenses4,633 4,298 7.8 
Adjusted EBITDA
$364 $602 (39.6)%
Average monthly direct-to-consumer revenue per customer relationship
$58.06 $57.25 1.4 %
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Liquidity and Capital Resources
Our businesses generate significant cash flows from operating activities. We believe that we will be able to continue to meet our current and long-term liquidity and capital requirements, including fixed charges, through our cash flows from operating activities; existing cash, cash equivalents and investments; available borrowings under our existing credit facility; and our ability to obtain future external financing.
We maintain significant availability under our revolving credit facility and commercial paper program to meet our short-term liquidity requirements. As of March 31, 2021, amounts available under our revolving credit facility, net of amounts outstanding under our commercial paper program and outstanding letters of credit and bank guarantees, totaled $11.0 billion. We entered into a new revolving credit facility in March 2021 (see Note 5).
We are subject to customary covenants and restrictions set forth in agreements related to debt issued at Comcast and certain of our subsidiaries, including the indentures governing our public debt securities and the credit agreements governing the Comcast revolving credit facility. Our credit facility contains a financial covenant pertaining to leverage, which is the ratio of debt to EBITDA, as defined in the credit facility. Compliance with this financial covenant is tested on a quarterly basis under the terms of the credit facility. As of March 31, 2021, we met this financial covenant by a significant margin and we would expect to remain in compliance with this financial covenant and other covenants related to our debt. The covenants and restrictions in our revolving credit facility do not apply to certain entities, including Sky and our international theme parks.
Operating Activities
Components of Net Cash Provided by Operating Activities
 Three Months Ended
March 31,
(in millions)
20212020
Operating income$5,039 $4,852 
Depreciation and amortization3,362 3,264 
Noncash share-based compensation373 298 
Changes in operating assets and liabilities(176)(1,393)
Payments of interest(911)(991)
Payments of income taxes(87)(281)
Other151 75 
Net cash provided by operating activities$7,751 $5,824 
The variance in changes in operating assets and liabilities for the three months ended March 31, 2021 compared to the same period in 2020 was primarily due to the timing of amortization and related payments for our film and television costs, including the timing of sporting events, and collections of accounts receivables and increases in deferred revenue.
In March 2021, we entered into an agreement with the NFL extending our rights for an additional 11 years through the 2033-2034 season. The new agreement includes exhibition rights for three additional Super Bowls and certain other rights, including streaming rights and additional exclusive games on Peacock.
Investing Activities
Net cash used in investing activities for the three months ended March 31, 2021 consisted primarily of capital expenditures, cash paid for intangible assets and the construction of Universal Beijing Resort, which were partially offset by proceeds from sales of businesses and investments. Net cash used in investing activities for the three months ended March 31, 2020 consisted primarily of capital expenditures, cash paid for intangible assets and the construction of Universal Beijing Resort. Capital expenditures decreased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to a decrease in spending in our Theme Parks segment, partially offset by an increase in spending related to scalable infrastructure in our Cable Communications segment to increase network capacity. Proceeds from sales of businesses and investments increased for the three months ended March 31, 2021 compared to the same period in 2020 primarily due to the sale of marketable equity securities.
Financing Activities
Net cash used in financing activities for the three months ended March 31, 2021 consisted primarily of dividend payments, payments related to the redemption of NBCUniversal Enterprise redeemable subsidiary preferred stock presented in other financing activities and repurchases of common stock under our employee plans. Net cash provided by financing activities for the three months ended March 31, 2020 consisted primarily of proceeds from borrowings, including the issuance of senior
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notes, partially offset by repayments of debt, including the early redemption of senior notes, dividend payments and repurchases of common stock under our employee plans.
As of March 31, 2021, we had no commercial paper outstanding and there were no amounts outstanding under our revolving credit facility.
We have made, and may from time to time in the future make, optional repayments on our debt obligations, which may include repurchases or exchanges of our outstanding public notes and debentures, depending on various factors, such as market conditions. See Notes 5 and 6 for additional information on our financing activities.
Dividends
In January 2021, our Board of Directors approved a 9% increase in our dividend to $1.00 per share on an annualized basis. In January 2021, our Board of Directors approved our first quarter dividend of $0.25 per share, which was paid in April 2021. We expect to continue to pay quarterly dividends, although each dividend is subject to approval by our Board of Directors. On January 27, 2021, we paid dividends of $1.1 billion.
Guarantee Structure
Our debt is primarily issued at Comcast, although we also have debt at certain of our subsidiaries as a result of acquisitions and other issuances. A substantial amount of this debt is subject to guarantees by Comcast and by certain subsidiaries that we have put in place to simplify our capital structure. We believe this guarantee structure provides liquidity benefits to debt investors and helps to simplify credit analysis with respect to relative value considerations of guaranteed subsidiary debt.
Debt and Guarantee Structure
(in billions)March 31, 2021December 31, 2020
Debt subject to cross-guarantees
Comcast$85.6 $85.7 
NBCUniversal(a)
2.8 2.8 
Comcast Cable(a)
2.1 2.1 
90.5 90.6 
Debt subject to one-way guarantees
Sky8.2 8.4 
Other(a)
2.5 2.8 
10.7 11.2 
Debt not guaranteed
Universal Beijing Resort(b)
3.0 2.5 
Other1.2 1.1 
4.2 3.6 
Debt issuance costs, premiums, discounts, fair value adjustments for acquisition accounting and hedged positions, net
(1.7)(1.6)
Total debt$103.7 $103.8 
(a)NBCUniversal, Comcast Cable and Comcast Holdings (included within other debt subject to one-way guarantees) are each consolidated subsidiaries subject to the periodic reporting requirements of the SEC. The guarantee structures and related disclosures in this section, together with Exhibit 22, satisfy these reporting obligations.
(b)Universal Beijing Resort debt financing is secured by the assets of Universal Beijing Resort and the equity interests of the investors. See Note 6 for additional information.
Cross-guarantees
Comcast, NBCUniversal and Comcast Cable (the “Guarantors”) fully and unconditionally, jointly and severally, guarantee each other’s debt securities. NBCUniversal and Comcast Cable also guarantee other borrowings of Comcast, including its revolving credit facility. These guarantees rank equally with all other general unsecured and unsubordinated obligations of the respective Guarantors. However, the obligations of the Guarantors under the guarantees are structurally subordinated to the indebtedness and other liabilities of their respective non-guarantor subsidiaries. The obligations of each Guarantor are limited to the maximum amount that would not render such Guarantor’s obligations subject to avoidance under applicable fraudulent conveyance provisions of U.S. and non-U.S. law. Each Guarantor’s obligations will remain in effect until all amounts payable with respect to the guaranteed securities have been paid in full. However, a guarantee by NBCUniversal or Comcast Cable of Comcast’s debt securities, or by NBCUniversal of Comcast Cable’s debt securities, will terminate upon a disposition of such Guarantor entity or all or substantially all of its assets.
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The Guarantors are each holding companies that principally hold investments in, borrow from and lend to non-guarantor subsidiary operating companies; issue and service third-party debt obligations; repurchase shares and pay dividends; and engage in certain corporate and headquarters activities. The Guarantors are generally dependent on non-guarantor subsidiary operating companies to fund these activities.
As of March 31, 2021 and December 31, 2020, the combined Guarantors have noncurrent notes payable to non-guarantor subsidiaries of $125 billion and $124 billion, respectively, and for both periods have noncurrent notes receivable from non-guarantor subsidiaries of $26 billion. This financial information is that of the Guarantors presented on a combined basis with intercompany balances between the Guarantors eliminated. The combined financial information excludes financial information of non-guarantor subsidiaries. The underlying net assets of the non-guarantor subsidiaries are significantly in excess of the Guarantor obligations. Excluding investments in non-guarantor subsidiaries, external debt and the noncurrent notes payable and receivable with non-guarantor subsidiaries, the Guarantors do not have material assets, liabilities or results of operations.
One-way Guarantees
Comcast provides full and unconditional guarantees of certain debt issued by Sky and other consolidated subsidiaries not subject to the periodic reporting requirements of the SEC.
Comcast also provides a full and unconditional guarantee of $138 million principal amount of subordinated debt issued by Comcast Holdings. Comcast’s obligations under this guarantee are subordinated and subject, in right of payment, to the prior payment in full of all of Comcast’s senior indebtedness, including debt guaranteed by Comcast on a senior basis; and are structurally subordinated to the indebtedness and other liabilities of its non-guarantor subsidiaries (for purposes of this Comcast Holdings discussion, Comcast Cable and NBCUniversal are included within the non-guarantor subsidiary group). Comcast’s obligations as guarantor will remain in effect until all amounts payable with respect to the guaranteed debt have been paid in full. However, the guarantee will terminate upon a disposition of Comcast Holdings or all or substantially all of its assets. Comcast Holdings is a consolidated subsidiary holding company that directly or indirectly holds 100% and approximately 37% of our equity interests in Comcast Cable and NBCUniversal, respectively.
As of March 31, 2021 and December 31, 2020, Comcast and Comcast Holdings, the combined issuer and guarantor of the guaranteed subordinated debt, have noncurrent senior notes payable to non-guarantor subsidiaries of $95 billion and $94 billion, respectively, and noncurrent notes receivable from non-guarantor subsidiaries of $24 billion and $23 billion, respectively. This financial information is that of Comcast and Comcast Holdings presented on a combined basis with intercompany balances between Comcast and Comcast Holdings eliminated. The combined financial information excludes financial information of non-guarantor subsidiaries of Comcast and Comcast Holdings. The underlying net assets of the non-guarantor subsidiaries of Comcast and Comcast Holdings are significantly in excess of the obligations of Comcast and Comcast Holdings. Excluding investments in non-guarantor subsidiaries, external debt and the noncurrent notes payable and receivable with non-guarantor subsidiaries, Comcast and Comcast Holdings do not have material assets, liabilities or results of operations.
Critical Accounting Judgments and Estimates
The preparation of our condensed consolidated financial statements requires us to make estimates that affect the reported amounts of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. We base our judgments on our historical experience and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making estimates about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
Following the change in presentation of our segment operating results in the first quarter of 2021, we reassessed the reporting units related to goodwill in our NBCUniversal segments and concluded that our reporting units are the same as our reportable segments. See Note 2 for additional information.
For a more complete discussion of the accounting judgments and estimates that we have identified as critical in the preparation of our condensed consolidated financial statements, please refer to our Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2020 Annual Report on Form 10-K.
ITEM 3: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We have evaluated the information required under this item that was disclosed in our 2020 Annual Report on Form 10-K and there have been no significant changes to this information.
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ITEM 4: CONTROLS AND PROCEDURES
Conclusions regarding disclosure controls and procedures
Our principal executive and principal financial officers, after evaluating the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of the end of the period covered by this report, have concluded that, based on the evaluation of these controls and procedures required by paragraph (b) of Exchange Act Rules 13a-15 or 15d-15, such disclosure controls and procedures were effective.
Changes in internal control over financial reporting
There were no changes in internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that occurred during the last fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II: OTHER INFORMATION
ITEM 1: LEGAL PROCEEDINGS
See Note 10 included in this Quarterly Report on Form 10-Q for a discussion of legal proceedings.
ITEM 1A: RISK FACTORS
There have been no material changes from the risk factors previously disclosed in Item 1A of our 2020 Annual Report on Form 10-K.
ITEM 6: EXHIBITS
Exhibit
No.
Description
Comcast Corporation 2002 Restricted Stock Plan, as amended and restated effective March 1, 2021
Comcast Corporation 2002 Deferred Compensation Plan, as amended and restated effective March 1, 2021
Comcast Corporation 2005 Deferred Compensation Plan, as amended and restated effective March 1, 2021
Credit Agreement dated as of March 30, 2021, among Comcast Corporation, the financial institutions party thereto, JPMorgan Chase Bank, N.A., as administrative agent, Citibank, N.A., as syndication agent, Bank of America, N.A., Mizuho Bank, Ltd., Morgan Stanley MUFG Partners, LLC and Wells Fargo Bank, National Association, as co-documentation agents (incorporated by reference to Exhibit 10.1 to Comcast’s Current Report on Form 8-K filed on March 31, 2021)
Subsidiary guarantors and issuers of guaranteed securities and affiliates whose securities collateralize securities of the registrant (incorporated by reference to Exhibit 22.1 to Comcast’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2020)
Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101The following financial statements from Comcast Corporation’s Quarterly Report on Form 10-Q for the three months ended March 31, 2021, filed with the Securities and Exchange Commission on April 29, 2021, formatted in Inline Extensible Business Reporting Language (iXBRL): (i) the Condensed Consolidated Statement of Income; (ii) the Condensed Consolidated Statement of Comprehensive Income; (iii) the Condensed Consolidated Statement of Cash Flows; (iv) the Condensed Consolidated Balance Sheet; (v) the Condensed Consolidated Statement of Changes in Equity; and (vi) the Notes to Condensed Consolidated Financial Statements.
104Cover Page Interactive Data File (embedded within the iXBRL document)
*Constitutes a management contract or compensatory plan or arrangement.
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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
COMCAST CORPORATION
By:/s/ DANIEL C. MURDOCK
Daniel C. Murdock
Executive Vice President, Chief Accounting Officer and Controller
(Principal Accounting Officer)
Date: April 29, 2021

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