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v3.19.3.a.u2

Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Treasury Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2016 | $ (3,933) | $ (4) | $ 500 | $ (2,050) | $ (2,366) | $ (13)
Beginning Balance, Shares at Dec. 31, 2016 |  | 414 | 77 |  |  |
Cumulative Effect on Retained Earnings, Net of Tax | 58 |  |  |  | 58 |
Net income (1) | 1,140 |  |  |  | 1,140 |
Other comprehensive income | (13) |  |  |  |  | (13)
Vesting of restricted stock units | (10) | $ 0 | $ (10) |  |  |
Vesting of restricted stock units, Shares |  | 1 | 1 |  |  |
Stock Issued During Period, Value, Stock Options Exercised | 4 | $ 0 | $ 0 | 4 | 0 | 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  | 0 | 0 |  |  |
Stock compensation expense total | 29 |  |  | 29 |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 44 | $ 0 |  | 44 |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 3 |  |  |  |
Stock Repurchased During Period, Value | 380 |  | $ (380) | 0 |  |
Shares repurchased |  |  | 19 |  |  |
Ending Balance at Dec. 31, 2017 | 4,805 | $ 4 | $ (890) | 2,127 | 3,564 | 0
Ending Balance, Shares at Dec. 31, 2017 |  | 418 | 97 |  |  |
Net income (1) | 189 |  |  |  | 189 |
Other comprehensive income | (3) |  |  |  |  | (3)
Vesting of restricted stock units | (7) | $ 0 | $ (7) |  |  |
Vesting of restricted stock units, Shares |  | 1 | 0 |  |  |
Stock compensation expense total | 28 |  |  | 28 |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 48 | $ 0 |  | 48 |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 3 |  |  |  |
Stock Repurchased During Period, Value | 375 |  | $ (375) | 0 |  |
Shares repurchased |  |  | 19 |  |  |
Ending Balance at Dec. 31, 2018 | 4,685 | $ 4 | $ (1,272) | 2,203 | 3,753 | (3)
Ending Balance, Shares at Dec. 31, 2018 |  | 422 | 116 |  |  |
Net income (1) | 569 |  |  |  | 569 |
Other comprehensive income | 5 |  |  |  |  | 5
Vesting of restricted stock units | (6) | $ 0 | $ (6) |  |  |
Vesting of restricted stock units, Shares |  | 2 | 0 |  |  |
Stock compensation expense total | 31 |  |  | 31 |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 51 | $ 0 |  | 51 |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 3 |  |  |  |
Stock Repurchased During Period, Value | 536 |  | $ (504) | (32) |  |
Shares repurchased |  |  | 29 |  |  |
Ending Balance at Dec. 31, 2019 | $ 4,799 | $ 4 | $ (1,782) | $ 2,253 | $ 4,322 | $ 2
Ending Balance, Shares at Dec. 31, 2019 |  | 427 | 145 |  |  |

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