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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions | Total | Cumulative Effect, Period of Adoption, Adjustment | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment | Treasury Stock, At Cost [Member] | Accumulated Other Comprehensive Income (Loss), Net [Member] | Noncontrolling Interest [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance Outstanding (in shares) at Dec. 31, 2019 |  |  | 2,000 | 957,000 |  |  |  |  |  |
Beginning Balance at Dec. 31, 2019 | $ 16,295 | $ (377) | $ 1,310 | $ 10 | $ 12,685 | $ 3,751 | $ (377) | $ (1,371) | $ (90) | $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | 162 |  |  |  |  | 162 |  |  |  |
Other comprehensive income, net of tax | 1,414 |  |  |  |  |  |  |  | 1,414 |
Cash dividends declared | (149) |  |  |  |  | (149) |  |  |  |
Preferred stock dividends | (23) |  |  |  |  | (23) |  |  |  |
Impact of stock transactions under compensation plans, net and other | 10 |  |  |  | 10 |  |  |  |  |
Ending Balance Outstanding (in shares) at Mar. 31, 2020 |  |  | 2,000 | 957,000 |  |  |  |  |  |
Ending Balance at Mar. 31, 2020 | 17,332 |  | $ 1,310 | $ 10 | 12,695 | 3,364 |  | (1,371) | 1,324 | 0
Beginning Balance Outstanding (in shares) at Dec. 31, 2019 |  |  | 2,000 | 957,000 |  |  |  |  |  |
Beginning Balance at Dec. 31, 2019 | 16,295 | $ (377) | $ 1,310 | $ 10 | 12,685 | 3,751 | $ (377) | (1,371) | (90) | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | (52) |  |  |  |  |  |  |  |  |
Other comprehensive income, net of tax | 1,716 |  |  |  |  |  |  |  |  |
Net proceeds from issuance of preferred stock | 346 |  |  |  |  |  |  |  |  |
Ending Balance Outstanding (in shares) at Jun. 30, 2020 |  |  | 2,000 | 960,000 |  |  |  |  |  |
Ending Balance at Jun. 30, 2020 | 17,602 |  | $ 1,656 | $ 10 | 12,703 | 2,978 |  | (1,371) | 1,626 | 26
Beginning Balance Outstanding (in shares) at Mar. 31, 2020 |  |  | 2,000 | 957,000 |  |  |  |  |  |
Beginning Balance at Mar. 31, 2020 | 17,332 |  | $ 1,310 | $ 10 | 12,695 | 3,364 |  | (1,371) | 1,324 | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | (214) |  |  |  |  | (214) |  |  |  |
Other comprehensive income, net of tax | 302 |  |  |  |  |  |  |  | 302 |
Cash dividends declared | (149) |  |  |  |  | (149) |  |  |  |
Preferred stock dividends | (23) |  |  |  |  | (23) |  |  |  |
Net proceeds from issuance of preferred stock (in shares) |  |  | 0 |  |  |  |  |  |  |
Net proceeds from issuance of preferred stock | 346 |  | $ 346 |  |  |  |  |  |  |
Impact of stock transactions under compensation plans, net and other (in shares) |  |  |  | 3,000 |  |  |  |  |  |
Impact of stock transactions under compensation plans, net and other | 8 |  |  |  | 8 |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  | 26
Ending Balance Outstanding (in shares) at Jun. 30, 2020 |  |  | 2,000 | 960,000 |  |  |  |  |  |
Ending Balance at Jun. 30, 2020 | 17,602 |  | $ 1,656 | $ 10 | 12,703 | 2,978 |  | (1,371) | 1,626 | 26
Beginning Balance Outstanding (in shares) at Dec. 31, 2020 |  |  | 2,000 | 960,000 |  |  |  |  |  |
Beginning Balance at Dec. 31, 2020 | 18,111 |  | $ 1,656 | $ 10 | 12,731 | 3,770 |  | (1,371) | 1,315 | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | 642 |  |  |  |  | 642 |  |  |  |
Other comprehensive income, net of tax | (723) |  |  |  |  |  |  |  | (723) |
Cash dividends declared | (149) |  |  |  |  | (149) |  |  |  |
Preferred stock dividends | (28) |  |  |  |  | (28) |  |  |  |
Impact of stock transactions under compensation plans, net and other (in shares) |  |  |  | 1,000 |  |  |  |  |  |
Impact of stock transactions under compensation plans, net and other | 9 |  |  |  | 9 |  |  |  |  |
Ending Balance Outstanding (in shares) at Mar. 31, 2021 |  |  | 2,000 | 961,000 |  |  |  |  |  |
Ending Balance at Mar. 31, 2021 | 17,862 |  | $ 1,656 | $ 10 | 12,740 | 4,235 |  | (1,371) | 592 | 0
Beginning Balance Outstanding (in shares) at Dec. 31, 2020 |  |  | 2,000 | 960,000 |  |  |  |  |  |
Beginning Balance at Dec. 31, 2020 | 18,111 |  | $ 1,656 | $ 10 | 12,731 | 3,770 |  | (1,371) | 1,315 | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,432 |  |  |  |  |  |  |  |  |
Other comprehensive income, net of tax | (664) |  |  |  |  |  |  |  |  |
Preferred stock dividends | (57) |  |  |  |  |  |  |  |  |
Net proceeds from issuance of preferred stock | 390 |  |  |  |  |  |  |  |  |
Ending Balance Outstanding (in shares) at Jun. 30, 2021 |  |  | 2,000 | 955,000 |  |  |  |  |  |
Ending Balance at Jun. 30, 2021 | 18,252 |  | $ 1,659 | $ 10 | 12,467 | 4,836 |  | (1,371) | 651 | 0
Beginning Balance Outstanding (in shares) at Mar. 31, 2021 |  |  | 2,000 | 961,000 |  |  |  |  |  |
Beginning Balance at Mar. 31, 2021 | 17,862 |  | $ 1,656 | $ 10 | 12,740 | 4,235 |  | (1,371) | 592 | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | 790 |  |  |  |  | 790 |  |  |  |
Other comprehensive income, net of tax | 59 |  |  |  |  |  |  |  | 59 |
Cash dividends declared | (147) |  |  |  |  | (147) |  |  |  |
Preferred stock dividends | (29) |  |  |  |  | (29) |  |  |  |
Net proceeds from issuance of preferred stock | 390 |  | 390 |  |  |  |  |  |  |
Preferred Stock, Redemption Amount | $ (500) |  | $ (387) |  | (100) | (13) |  |  |  |
Impact of common stock share repurchases (in shares) | (8,000) |  |  | (8,000) |  |  |  |  |  |
Impact of common stock share repurchases | $ (167) |  |  |  | (167) |  |  |  |  |
Impact of stock transactions under compensation plans, net and other (in shares) |  |  |  | 2,000 |  |  |  |  |  |
Impact of stock transactions under compensation plans, net and other | (6) |  |  |  | (6) |  |  |  |  |
Ending Balance Outstanding (in shares) at Jun. 30, 2021 |  |  | 2,000 | 955,000 |  |  |  |  |  |
Ending Balance at Jun. 30, 2021 | $ 18,252 |  | $ 1,659 | $ 10 | $ 12,467 | $ 4,836 |  | $ (1,371) | $ 651 | $ 0

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