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Shareholders' Equity (Shareholders' Equity, Accumulated Other Comprehensive Loss, Common Stock, and Preferred Stock) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Class of Stock [Line Items] |  |  |  |
Issued |  | 1,066,000,000 | 1,066,000,000 |
In treasury |  | (164,000,000) | (170,000,000) |
Total shares of common stock outstanding |  | 902,000,000 | 896,000,000 |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |  |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax | [1] | $ (101,000,000) | $ (47,000,000) |
Other |  | (45,000,000) | (51,000,000) |
Accumulated other comprehensive loss |  | $ (230,000,000) | $ (183,000,000) |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |
Stock Repurchased During Period, Shares |  | 6,800,000 | 0 |
Stock authorized to repurchase |  | $ 4,900,000,000 |  |
Number of shares of common stock repurchased from inception (in shares) |  | 231,000,000 |  |
Approximate value of shares of common stock repurchased from inception |  | $ 9,300,000,000 |  |
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |
Number of shares of preferred stock that are authorized for issuance (in shares) |  | 5,000,000 |  |
Number of shares preferred stock that are issued at period end (in shares) |  | 0 |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax |  | $ (84,000,000) | $ (85,000,000) |
Stock plans |  | 395,000,000 | 264,000,000 | $ 285,000,000
Retained Earnings |  |  |  |
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |
Stock plans |  | (275,000,000) | (277,000,000) | $ (75,000,000)
Foreign Plan [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |  |
Net actuarial losses |  | $ 98,000,000 | $ 49,000,000 |
[1] | Included net actuarial losses for our international pension plans of $98 million at December 31, 2022 and $49 million at December 31, 2021.

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