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Statement of Changes in Consolidated Equity (unaudited) - USD ($) $ in Millions | Total | Preferred Class A [Member] | Preferred Class B [Member] | Preferred Stock [Member] | Mandatory Convertible Preferred Stock [Member] | Common Stock [Member] | Additional Capital [Member] | Retained Earnings (Accumulated Deficit) [Member] | Retained Earnings (Accumulated Deficit) [Member] Preferred Class A [Member] | Retained Earnings (Accumulated Deficit) [Member] Preferred Class B [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Loss [Member] | Noncontrolling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 | $ 14,131 |  |  | $ 55 | $ 3 | $ 1,391 | $ 10,019 | $ 8,834 |  |  | $ (2,825) | $ (5,431) | $ 2,085
Net income | 375 |  |  |  |  |  |  | 317 |  |  |  |  | 58
Other comprehensive (loss) income (C) | (237) |  |  |  |  |  |  |  |  |  |  | (427) | 190
Cash dividends declared: |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred share, value |  | $ (2) | $ (50) |  |  |  |  |  | $ (2) | $ (50) |  |  |
Common share, value | (159) |  |  |  |  |  |  | (159) |  |  |  |  |
Stock-based compensation | 73 |  |  |  |  |  | 73 |  |  |  |  |  |
Common stock issued: compensation plans | (23) |  |  |  |  |  | (209) |  |  |  | 186 |  |
Retirement of Treasury stock |  |  |  |  |  | (76) | (2,563) |  |  |  | 2,639 |  |
Reverse stock split |  |  |  |  |  | (877) | 877 |  |  |  |  |  |
Distributions | (176) |  |  |  |  |  |  |  |  |  |  |  | (176)
Other | 13 |  |  |  |  |  |  |  |  |  |  |  | 13
Balance at Sep. 30, 2016 | 13,945 |  |  | 55 | 3 | 438 | 8,197 | 8,940 |  |  |  | (5,858) | 2,170
Balance at Jun. 30, 2016 | 14,529 |  |  | 55 | 3 | 1,391 | 9,877 | 8,871 |  |  | (2,647) | (5,215) | 2,194
Net income | 186 |  |  |  |  |  |  | 166 |  |  |  |  | 20
Other comprehensive (loss) income (C) | (609) |  |  |  |  |  |  |  |  |  |  | (643) | 34
Cash dividends declared: |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred share, value |  | (1) | (16) |  |  |  |  |  | (1) | (16) |  |  |
Common share, value | (80) |  |  |  |  |  |  | (80) |  |  |  |  |
Stock-based compensation | 18 |  |  |  |  |  | 18 |  |  |  |  |  |
Common stock issued: compensation plans | (4) |  |  |  |  |  | (12) |  |  |  | 8 |  |
Retirement of Treasury stock |  |  |  |  |  | (76) | (2,563) |  |  |  | $ 2,639 |  |
Reverse stock split |  |  |  |  |  | (877) | 877 |  |  |  |  |  |
Distributions | (92) |  |  |  |  |  |  |  |  |  |  |  | (92)
Other | 14 |  |  |  |  |  |  |  |  |  |  |  | 14
Balance at Sep. 30, 2016 | 13,945 |  |  | 55 | 3 | 438 | 8,197 | 8,940 |  |  |  | (5,858) | 2,170
Balance at Dec. 31, 2016 | 5,141 |  |  | 55 | 3 | 438 | 8,214 | (1,027) |  |  |  | (2,568) | 26
Net income | 653 |  |  |  |  |  |  | 653 |  |  |  |  |
Other comprehensive (loss) income (C) | 241 |  |  |  |  |  |  |  |  |  |  | 241 |
Cash dividends declared: |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred share, value |  | (2) | (51) |  |  |  |  |  | (2) | (51) |  |  |
Common share, value | (107) |  |  |  |  |  |  | (107) |  |  |  |  |
Stock-based compensation | 59 |  |  |  |  |  | 59 |  |  |  |  |  |
Common stock issued: compensation plans | 25 |  |  |  |  | 4 | 21 |  |  |  |  |  |
Distributions | (14) |  |  |  |  |  |  |  |  |  |  |  | (14)
Other | 16 |  |  |  |  |  |  | 15 |  |  |  |  | 1
Balance at Sep. 30, 2017 | 5,961 |  |  | 55 | 3 | 442 | 8,294 | (519) |  |  |  | (2,327) | 13
Balance at Jun. 30, 2017 | 5,753 |  |  | 55 | 3 | 441 | 8,262 | (567) |  |  |  | (2,454) | 13
Net income | 119 |  |  |  |  |  |  | 119 |  |  |  |  |
Other comprehensive (loss) income (C) | 127 |  |  |  |  |  |  |  |  |  |  | 127 |
Cash dividends declared: |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred share, value |  | $ (1) | $ (17) |  |  |  |  |  | $ (1) | $ (17) |  |  |
Common share, value | (53) |  |  |  |  |  |  | (53) |  |  |  |  |
Stock-based compensation | 11 |  |  |  |  |  | 11 |  |  |  |  |  |
Common stock issued: compensation plans | 22 |  |  |  |  | 1 | 21 |  |  |  |  |  |
Balance at Sep. 30, 2017 | $ 5,961 |  |  | $ 55 | $ 3 | $ 442 | $ 8,294 | $ (519) |  |  |  | $ (2,327) | $ 13

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