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v3.19.1

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions | Total | Common shares [Member] | Additional paid-in capital [Member] | Retained earnings [Member] | Treasury shares [Member] | AOCI Attributable to Parent [Member]
--- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Cumulative effect of change in accounting policy | Cumulative effect of adoption of equity securities guidance | $ 0 |  |  | $ 1 |  | $ (1)
Beginning balance (in shares) at Dec. 31, 2017 |  | 146,634,664 |  |  |  |
Beginning balance at Dec. 31, 2017 | 5,995 | $ 3 | $ 8,085 | 11,326 | $ (13,648) | 229
Comprehensive income (loss) [Abstract] |  |  |  |  |  |
Net income | 594 |  |  | 594 |  |
Total other comprehensive income (loss), net of tax | (233) |  |  |  |  | (233)
Total comprehensive income | 361 |  |  |  |  |
Dividends to shareholders | (125) |  |  | (125) |  |
Repurchase of common shares (in shares) |  | (3,003,729) |  |  |  |
Repurchase of common shares | (482) |  |  |  | (482) |
Share-based compensation plans (in shares) |  | 1,387,422 |  |  |  |
Share-based compensation plans | 91 |  | 31 |  | 60 |
Ending balance (in shares) at Mar. 31, 2018 |  | 145,018,357 |  |  |  |
Ending balance at Mar. 31, 2018 | 5,840 | $ 3 | 8,116 | 11,796 | (14,070) | (5)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Cumulative effect of change in accounting policy | 1 |  |  |  |  |
Cumulative effect of change in accounting policy | Cumulative effect of adoption of premium amort on purchased callable debt | (5) |  |  | (5) |  |
Beginning balance (in shares) at Dec. 31, 2018 |  | 136,330,747 |  |  |  |
Beginning balance at Dec. 31, 2018 | 5,588 | $ 3 | 8,260 | 12,909 | (15,293) | (291)
Comprehensive income (loss) [Abstract] |  |  |  |  |  |
Net income | 395 |  |  | 395 |  |
Total other comprehensive income (loss), net of tax | 326 |  |  |  |  | 326
Total comprehensive income | 721 |  |  |  |  |
Dividends to shareholders | (127) |  |  | (127) |  |
Repurchase of common shares (in shares) |  | (3,199,907) |  |  |  |
Repurchase of common shares | (399) |  |  |  | (399) |
Share-based compensation plans (in shares) |  | 1,052,667 |  |  |  |
Share-based compensation plans | 65 |  | 10 |  | 55 |
Ending balance (in shares) at Mar. 31, 2019 |  | 134,183,507 |  |  |  |
Ending balance at Mar. 31, 2019 | $ 5,843 | $ 3 | $ 8,270 | $ 13,172 | $ (15,637) | $ 35

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