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v3.10.0.1

Condensed Consolidated Statements Of Equity - USD ($) $ in Millions | Total | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Noncontrolling Interests [Member] | Noncontrolling Interests [Member] Preferred Stock [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of period at Dec. 31, 2016 | $ 44,075 |  | $ 15 | $ 26,983 | $ 26,168 | $ (9,330) | $ 239 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income (loss) | 1,298 |  |  |  | 1,287 |  | 11 |
Other comprehensive income (loss) | 1,545 |  |  |  |  | 1,547 | (2) |
Issuance of preferred stock (Note 17) |  | $ 985 |  |  |  |  |  | $ 985
Purchase of common stock | (2,994) |  | (1) | (1,476) | (1,517) |  |  |
Exercise of common stock warrants | 42 |  |  | 42 |  |  |  |
Stock based compensation | 268 |  |  | 293 | (25) |  |  |
Cash dividends paid on common stock | (1,683) |  |  |  | (1,683) |  |  |
Dividends to noncontrolling interests | (18) |  |  |  |  |  | (18) |
Other | (41) |  |  | (60) |  |  | 19 |
Balance at end of period at Sep. 30, 2017 | 43,477 |  | 14 | 25,782 | 24,230 | (7,783) | 1,234 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income (loss) | (2,982) |  |  |  |  |  |  |
Other comprehensive income (loss) | 1,584 |  |  |  |  |  |  |
Cash dividends paid on common stock | (546) |  |  |  |  |  |  |
Balance at end of period at Sep. 30, 2017 | 43,477 |  | 14 | 25,782 | 24,230 | (7,783) | 1,234 |
Balance at beginning of period at Dec. 31, 2017 | 36,200 |  | 14 | 25,371 | 17,627 | (8,011) | 1,199 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Adoption of accounting standards (Note 1) | (1,144) |  |  |  | (1,046) | (98) |  |
Net income (loss) | 5,936 |  |  |  | 5,970 |  | (34) |
Other comprehensive income (loss) | (217) |  |  |  |  | (212) | (5) |
Issuance of preferred stock (Note 17) |  | $ 1,753 |  |  |  |  |  | $ 1,753
Purchase of common stock | (100) |  |  | (44) | (56) |  |  |
Exercise of common stock warrants | 2 |  |  | 2 |  |  |  |
Cash dividends paid on common stock | (1,608) |  |  |  | (1,608) |  |  |
Dividends to noncontrolling interests | (106) |  |  |  |  |  | (106) |
Other | 192 |  |  | 174 | (22) |  | 40 |
Balance at end of period at Sep. 30, 2018 | 40,908 |  | 14 | 25,503 | 20,865 | (8,321) | 2,847 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income (loss) | 2,530 |  |  |  |  |  |  |
Other comprehensive income (loss) | (150) |  |  |  |  |  |  |
Cash dividends paid on common stock | (537) |  |  |  |  |  |  |
Balance at end of period at Sep. 30, 2018 | $ 40,908 |  | $ 14 | $ 25,503 | $ 20,865 | $ (8,321) | $ 2,847 |

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