Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions |
Total |
Preferred shares |
Common Shares |
Additional Paid-in Capital [Member] |
Accumulated Other Comprehensive (Loss) Income [Member] |
Retained Earnings [Member] |
|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2013 | $ 19,496 | $ 0 | $ 213 | $ 12,202 | $ (1,426) | $ 8,507 |
| Net income | 5,885 | 5,885 | ||||
| Other comprehensive (loss) income | (493) | (493) | ||||
| Repurchase of common shares | (4,378) | (10) | (604) | (3,764) | ||
| Cash dividends declared common, per share | (1,055) | (1,055) | ||||
| Ending Balance at Dec. 31, 2014 | $ 20,673 | 0 | 205 | $ 12,874 | (1,919) | 9,513 |
| Preferred shares issued | 742 | 742 | ||||
| Other changes, primarily employee plans | $ 476 | 2 | $ 534 | (60) | ||
| Net income | 5,163 | 5,163 | ||||
| Other comprehensive (loss) income | (615) | (615) | ||||
| Repurchase of common shares | (4,509) | (12) | (714) | (3,783) | ||
| Cash dividends declared preferred | (62) | (62) | ||||
| Cash dividends declared common, per share | (1,128) | (1,128) | ||||
| Ending Balance at Dec. 31, 2015 | $ 20,673 | 0 | 194 | $ 13,348 | (2,534) | 9,665 |
| Preferred shares issued | 841 | 841 | ||||
| Other changes, primarily employee plans | $ 310 | 1 | $ 347 | (38) | ||
| Net income | 5,408 | 5,408 | ||||
| Other comprehensive (loss) income | (250) | (250) | ||||
| Repurchase of common shares | (4,421) | (14) | (924) | (3,483) | ||
| Cash dividends declared preferred | (80) | (80) | ||||
| Cash dividends declared common, per share | (1,137) | (1,137) | ||||
| Ending Balance at Dec. 31, 2016 | $ 20,501 | $ 0 | 181 | 12,733 | $ (2,784) | 10,371 |
| Preferred shares issued | 0 | |||||
| Other changes, primarily employee plans | $ 308 | $ 1 | $ 309 | $ (2) |