Overview Financials News + Filings Key Docs Charts Transactions Holdings Ownership Insiders
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| In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | -191.0 | -388.0 | -22.0 | -64.0 | -397.0 | 21.0 | -40.0 | -22.0 |
| Depreciation and amortization | 150.0 | 168.0 | 169.0 | 160.0 | 213.0 | 222.0 | 268.0 | 298.0 |
| Asset impairment charges | | 550.0 | 288.0 | | 1,798.0 | | 2.0 | |
| Stock-based compensation | 125.0 | 112.0 | 131.0 | 123.0 | 103.0 | 91.0 | 82.0 | 74.0 |
| Deferred taxes | -49.0 | -73.0 | -79.0 | -8.0 | -329.0 | -52.0 | -85.0 | -70.0 |
| Change in working capital | 104.0 | -184.0 | 11.0 | 31.0 | 112.0 | 78.0 | 91.0 | 135.0 |
| Other | 104.0 | -184.0 | 11.0 | 31.0 | 112.0 | 78.0 | 91.0 | 135.0 |
| Other operating activities | -42.0 | -400.0 | -107.0 | 158.0 | -1,281.0 | -59.0 | 73.0 | |
| Cash from operations | 97.0 | -215.0 | 391.0 | 400.0 | 219.0 | 301.0 | 391.0 | 385.0 |
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| Capital expenditures | -54.0 | -55.0 | -83.0 | -61.0 | -65.0 | -73.0 | -112.0 | -90.0 |
| Purchases of property and equipment | -54.0 | -55.0 | -83.0 | -61.0 | -65.0 | -73.0 | -112.0 | -90.0 |
| Sales of short-term investments, net [+] | | | 17.0 | 48.0 | 70.0 | -50.0 | 53.0 | 178.0 |
| Purchases of short-term investments | | | -133.0 | -16.0 | -63.0 | -166.0 | -205.0 | -251.0 |
| Sales of short-term investments | | | 150.0 | 64.0 | 133.0 | 116.0 | 258.0 | 429.0 |
| Other cash from investing | | -1.0 | -110.0 | -36.0 | -6.0 | -41.0 | -2.0 | -329.0 |
| Cash from investing | -54.0 | -56.0 | -176.0 | -49.0 | -1.0 | -164.0 | -61.0 | -241.0 |
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| Repurchase of common stock, net | | -115.0 | -60.0 | -100.0 | -250.0 | | | |
| Option exercises | | | | | | 2.0 | 5.0 | 12.0 |
| Other cash from financing | 306.0 | 460.0 | -482.0 | -258.0 | 51.0 | -108.0 | -178.0 | 32.0 |
| Cash from financing | 306.0 | 345.0 | -542.0 | -358.0 | -199.0 | -110.0 | -183.0 | 20.0 |
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| Free cash flow | 43.0 | -270.0 | 308.0 | 339.0 | 154.0 | 228.0 | 279.0 | 295.0 |
| Per share (diluted) | $0.56 | ($3.55) | $4.11 | $4.58 | $2.05 | $3.04 | $3.72 | $3.99 |
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