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v3.23.1

Total Equity and Other Comprehensive Income (Rollforward of Total Equity) (Details) $ / shares in Units, $ in Millions |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 07, 2023 $ / shares shares | Mar. 31, 2023 USD ($) shares | Mar. 31, 2022 USD ($) shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | $ 45,812.0 | $ 55,726.0 |  |
Net income |  | 1,694.0 | 1,429.0 |  |
Other comprehensive income (loss), net of tax |  | 1,064.0 | (6,140.0) |  |
Dividends, Cash [Abstract] |  |  |  |  |
Common |  | (607.0) | (531.0) |  |
Preferred |  | (68.0) | (45.0) |  |
Preferred stock discount accretion |  |  |  |  |
Preferred stock issuance |  | 1,487.0 |  |  |
Treasury stock activity |  | (238.0) | (1,189.0) |  |
Other |  | (96.0) | (34.0) |  |
Equity, Ending Balance |  | 49,074.0 | 49,216.0 |  |
Preferred stock, par value |  | 0.5 | $ 0.5 | $ 0.5 | $ 0.5
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 26.0 |  |  |
Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | $ 45,838.0 |  |  |
Series W |  |  |  |  |
Dividends, Cash [Abstract] |  |  |  |  |
Depositary shares conversion ratio | 0.01 |  |  |  |
Common stock activity (shares) | shares | 1,500,000 |  |  |  |
Fixed interest rate | 6.25% |  |  |  |
Preferred stock, par or stated value per share (in dollars per share) | $ / shares | $ 1 |  |  |  |
Common Stock |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Beginning Balance (in shares) | shares |  | 401,000,000 | 420,000,000 |  |
Treasury stock activity, shares | shares |  | (2,000,000) | (5,000,000) |  |
Ending Balance, (in shares) | shares |  | 399,000,000 | 415,000,000 |  |
Equity, Beginning Balance |  | $ 2,714.0 | $ 2,713.0 |  |
Dividends, Cash [Abstract] |  |  |  |  |
Equity, Ending Balance |  | $ 2,714.0 | 2,713.0 |  |
Common Stock | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Beginning Balance (in shares) | shares |  | 401,000,000 |  |  |
Equity, Beginning Balance |  | $ 2,714.0 |  |  |
Capital Surplus - Preferred Stock |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 5,746.0 | 5,009.0 |  |
Dividends, Cash [Abstract] |  |  |  |  |
Preferred stock discount accretion |  | 2.0 | 2.0 |  |
Preferred stock issuance |  | 1,487.0 |  |  |
Equity, Ending Balance |  | 7,235.0 | 5,011.0 |  |
Capital Surplus - Preferred Stock | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 5,746.0 |  |  |
Capital Surplus - Common Stock and Other |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 12,630.0 | 12,448.0 |  |
Dividends, Cash [Abstract] |  |  |  |  |
Treasury stock activity |  | 70.0 | 45.0 |  |
Other |  | (71.0) | (17.0) |  |
Equity, Ending Balance |  | 12,629.0 | 12,476.0 |  |
Capital Surplus - Common Stock and Other | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 12,630.0 |  |  |
Retained Earnings |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 53,572.0 | 50,228.0 |  |
Net income |  | 1,677.0 | 1,408.0 |  |
Dividends, Cash [Abstract] |  |  |  |  |
Common |  | (607.0) | (531.0) |  |
Preferred |  | (68.0) | (45.0) |  |
Preferred stock discount accretion |  | (2.0) | (2.0) |  |
Equity, Ending Balance |  | 54,598.0 | 51,058.0 |  |
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 26.0 |  |  |
Retained Earnings | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 53,598.0 |  |  |
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | (10,172.0) | 409.0 |  |
Other comprehensive income (loss), net of tax |  | 1,064.0 | (6,140.0) |  |
Dividends, Cash [Abstract] |  |  |  |  |
Equity, Ending Balance |  | (9,108.0) | (5,731.0) |  |
Accumulated Other Comprehensive Income (Loss) | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | (10,172.0) |  |  |
Treasury Stock |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | (18,716.0) | (15,112.0) |  |
Dividends, Cash [Abstract] |  |  |  |  |
Treasury stock activity |  | (308.0) | (1,234.0) |  |
Equity, Ending Balance |  | (19,024.0) | (16,346.0) |  |
Treasury Stock | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | (18,716.0) |  |  |
Non- controlling Interests |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | 38.0 | 31.0 |  |
Net income |  | 17.0 | 21.0 |  |
Dividends, Cash [Abstract] |  |  |  |  |
Other |  | (25.0) | (17.0) |  |
Equity, Ending Balance |  | 30.0 | $ 35.0 |  |
Non- controlling Interests | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Common Stock [Abstract] |  |  |  |  |
Equity, Beginning Balance |  | $ 38.0 |  |  |

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