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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions | Total | Common Stock | Capital in Excess of Par Value | Treasury Stock, at Cost | Accumulated Other Comprehensive Loss | Retained Earnings
--- | --- | --- | --- | --- | --- | ---
Stockholders' Equity at Dec. 31, 2014 | $ 2,127 | $ 1 | $ 296 | $ (4) | $ (310) | $ 2,144
Common Stock Outstanding at Dec. 31, 2014 |  | 131,481,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net Income | 848 |  |  |  |  | 848
Other comprehensive income (loss) | $ 7 |  |  |  | 7 |
Common stock repurchase (in shares) | (7,208,328) | (7,208,000) |  |  |  |
Common stock repurchase | $ (505) |  | (259) | (246) |  |
Stock-based compensation | 17 |  | 17 |  |  |
Cash dividend declared | (102) |  |  |  |  | (102)
Stock issued for employee stock purchase plan (in shares) |  | 281,000 |  |  |  |
Stock issued for employee stock purchase plan | 13 |  | 13 |  |  |
Stock issued under stock plans (in shares) |  | 621,000 |  |  |  |
Stock issued under stock plans | 6 |  | 6 |  |  |
Stockholders' Equity at Dec. 31, 2015 | 2,411 | $ 1 | 73 | (250) | (303) | 2,890
Common Stock Outstanding at Dec. 31, 2015 |  | 125,175,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net Income | 814 |  |  |  |  | 814
Other comprehensive income (loss) | $ (2) |  |  |  | (2) |
Common stock repurchase (in shares) | (2,594,809) | (2,595,000) |  |  |  |
Common stock repurchase | $ (193) |  | 0 | (193) |  |
Stock-based compensation | 19 |  | 19 |  |  |
Cash dividend declared | (136) |  |  |  |  | (136)
Stock issued for employee stock purchase plan (in shares) |  | 309,000 |  |  |  |
Stock issued for employee stock purchase plan | 17 |  | 17 |  |  |
Stock issued under stock plans (in shares) |  | 439,000 |  |  |  |
Stock issued under stock plans | 1 |  | 1 |  |  |
Stockholders' Equity at Dec. 31, 2016 | $ 2,931 | $ 1 | 110 | (443) | (305) | 3,568
Common Stock Outstanding at Dec. 31, 2016 | 123,328,051 | 123,328,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net Income | $ 1,034 |  |  |  |  | 1,034
Other comprehensive income (loss) | $ (75) |  |  |  | (75) |
Common stock repurchase (in shares) | (981,277) | (981,000) |  |  |  |
Common stock repurchase | $ (75) |  | 0 | (75) |  |
Stock-based compensation | 34 |  | 34 |  |  |
Cash dividend declared | (148) |  |  |  |  | (148)
Stock issued for employee stock purchase plan (in shares) |  | 407,000 |  |  |  |
Stock issued for employee stock purchase plan | 24 |  | 24 |  |  |
Stock issued under stock plans (in shares) |  | 307,000 |  |  |  |
Stock issued under stock plans | (4) |  | (4) |  |  |
Stockholders' Equity at Dec. 31, 2017 | $ 3,721 | $ 1 | $ 164 | $ (518) | $ (380) | $ 4,454
Common Stock Outstanding at Dec. 31, 2017 | 123,060,638 | 123,061,000 |  |  |  |

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