Overview Financials News + Filings Key Docs Charts Transactions Ownership Insiders
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| In millions, except per share items | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 615.0 | -456.0 | -3,071.0 | -6,692.0 | -1,750.0 | 801.0 | 2,391.0 | -2,649.0 |
| Depreciation and amortization | 4,254.0 | 4,279.0 | 4,301.0 | 4,603.0 | 4,550.0 | 3,927.0 | 3,964.0 | 3,830.0 |
| Asset impairment charges | 800.0 | 408.0 | 227.0 | 5,075.0 | | | | |
| Deferred taxes | 139.0 | -2,169.0 | -1,238.0 | -3,152.0 | -105.0 | 137.0 | 164.0 | -1,461.0 |
| Change in working capital [+] | 137.0 | -179.0 | 234.0 | -699.0 | 200.0 | 867.0 | 44.0 | -727.0 |
| Accounts receivable | -211.0 | -147.0 | 677.0 | -2.0 | 103.0 | 719.0 | 520.0 | -993.0 |
| Other | 348.0 | -32.0 | -443.0 | -697.0 | 97.0 | 148.0 | -476.0 | 266.0 |
| Other operating activities | -16.0 | 2,126.0 | 2,547.0 | -1,012.0 | | | | |
| Cash from operations | 5,929.0 | 4,009.0 | 3,000.0 | -1,877.0 | 8,466.0 | 8,888.0 | 8,339.0 | 2,505.0 |
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| Capital expenditures [+] | -6,183.0 | -5,031.0 | -3,505.0 | -6,067.0 | -9,508.0 | -7,721.0 | -7,242.0 | -5,650.0 |
| Purchases of property and equipment | -6,183.0 | -5,031.0 | -3,505.0 | -6,067.0 | -9,508.0 | -7,721.0 | -7,242.0 | -5,650.0 |
| Sales of property and equipment | 417.0 | 4,008.0 | 2,356.0 | 1,415.0 | 4,968.0 | 567.0 | | |
| Acquisitions | | 25.0 | -1,740.0 | -3.0 | -1,527.0 | -473.0 | | -802.0 |
| Other cash from investing | -216.0 | -32.0 | 147.0 | -116.0 | -405.0 | -589.0 | | |
| Cash from investing | -5,982.0 | -1,030.0 | -2,742.0 | -4,771.0 | -6,472.0 | -8,216.0 | -6,869.0 | -5,975.0 |
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| Cash dividends paid | -528.0 | -111.0 | -105.0 | -553.0 | -505.0 | -274.0 | -181.0 | -181.0 |
| Repurchase of common stock, net | -2,725.0 | -1,092.0 | 2,150.0 | -21.0 | | | | |
| Option exercises | 7.0 | | 30.0 | 28.0 | 99.0 | 146.0 | 103.0 | 30.0 |
| Other cash from financing | 83.0 | -410.0 | -7.0 | 822.0 | 2,279.0 | 1,043.0 | -1,375.0 | 2,721.0 |
| Cash from financing | -3,177.0 | -1,613.0 | 2,008.0 | 220.0 | 1,675.0 | 623.0 | -1,659.0 | 2,510.0 |
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| Free cash flow | -254.0 | -1,022.0 | -505.0 | -7,944.0 | -1,042.0 | 1,167.0 | 1,097.0 | -3,145.0 |
| Per share (diluted) | ($0.50) | ($1.86) | ($0.97) | ($15.64) | ($2.06) | $2.31 | $2.19 | ($6.32) |
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