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Share-Based Compensation and Other Compensation Arrangements - Narrative (Details) $ / shares in Units, $ in Millions |  |  | 1 Months Ended | 12 Months Ended
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Mar. 11, 2024 $ / shares shares | Feb. 16, 2022 shares | Mar. 31, 2024 $ / shares shares | Feb. 29, 2024 $ / shares shares | Feb. 28, 2023 $ / shares shares | Jul. 31, 2022 $ / shares shares | Feb. 28, 2022 $ / shares shares | Dec. 31, 2024 USD ($) fund $ / shares shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate number of shares of stock available for issuance (in shares) |  |  |  |  |  |  |  |  | 12,900,000 |
Granted (in shares) |  |  |  |  |  |  |  | 124,374 |  |
Share-based compensation arrangement by share-based payment award, options, exercises in period, total intrinsic value | $ |  |  |  |  |  |  |  | $ 0 | $ 80 | $ 75
Share-based payment arrangement, exercise of option, tax benefit | $ |  |  |  |  |  |  |  | 0 | 18 | 17
Share-based compensation arrangement by share-based payment award, options, vested in period, fair value | $ |  |  |  |  |  |  |  | $ 32 |  |
Number of investment funds | fund |  |  |  |  |  |  |  | 23 |  |
Deferred compensation | $ |  |  |  |  |  |  |  | $ 114 | 188 | $ (117)
Deferred compensation liability which is being marked to market | $ |  |  |  |  |  |  |  | 1,675 | $ 1,640 |
2022 Stock Options |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost | $ |  |  |  |  |  |  |  | $ 9 |  |
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition |  |  |  |  |  |  |  | 3 years 1 month 6 days |  |
Long-Term Incentive Program |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost | $ |  |  |  |  |  |  |  | $ 353 |  |
Number of units, granted (in shares) |  |  |  |  |  |  |  | 2,174,064 |  |
Number of shares, forfeited (in shares) |  |  |  |  |  |  |  | 312,242 |  |
Stock options |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting period |  |  |  |  |  |  |  | 3 years |  |
Share-based compensation arrangement by share-based payment award, expiration period |  |  |  |  |  |  |  | 10 years |  |
Granted date fair value (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 83.04
Stock options | 2021 Stock Options |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  | 348,769 |  |  |  |  |  |  |  |
Stock options | 2022 Stock Options |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, purchase price of common stock, percent |  | 120.00% |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, purchase price of common stock, percent (reduced) |  | 110.00% |  |  |  |  |  |  |  |
Restricted stock units | Long-Term Incentive Program |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of units, granted (in shares) | 125,432 |  |  | 2,008,499 | 327,523 | 2,568,112 | 1,804,541 |  |  |
Granted date fair value (in dollars per share) | $ / shares | $ 192.94 |  |  | $ 204.15 | $ 214.35 | $ 157.69 | $ 217.48 |  |  |
Performance restricted stock units |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting period |  |  |  |  |  |  |  | 3 years |  |
Unrecognized compensation cost | $ |  |  |  |  |  |  |  | $ 0 |  |
Number of units, granted (in shares) |  |  | 153,306 |  | 199,899 |  |  |  |  |
Granted date fair value (in dollars per share) | $ / shares |  |  | $ 192.94 |  | $ 214.35 |  |  |  |  |
Number of shares, forfeited (in shares) |  |  |  |  |  |  |  | 40,042 |  |
Performance restricted stock units | Minimum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, equity instruments other than options, award payout percentage |  |  |  |  |  |  |  | 0.00% |  |
Share-based compensation arrangement by share-based payment award, equity instruments other than options, award payout reduction percentage |  |  |  |  |  |  |  | 25.00% |  |
Performance restricted stock units | Maximum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, equity instruments other than options, award payout percentage |  |  |  |  |  |  |  | 200.00% |  |
Share-based compensation arrangement by share-based payment award, equity instruments other than options, award payout reduction percentage |  |  |  |  |  |  |  | 0.00% |  |
Performance Based Restricted Stock Units (PBRSUs) |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting period |  |  |  |  |  |  |  | 3 years |  |
Performance Based Restricted Stock Units (PBRSUs) | 2020 PBRSU |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award payout range |  |  |  |  |  |  |  |  | 0.00% |
Performance Based Restricted Stock Units (PBRSUs) | 2020 PBRSU | Minimum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award payout range |  |  |  |  |  |  |  | 0.00% |  |
Performance Based Restricted Stock Units (PBRSUs) | 2020 PBRSU | Maximum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award payout range |  |  |  |  |  |  |  | 200.00% |  |
Performance Based Restricted Stock Units (PBRSUs) | 2019 PBRSU | Minimum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award payout range |  |  |  |  |  |  |  | 0.00% |  |
Performance Based Restricted Stock Units (PBRSUs) | 2019 PBRSU | Maximum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award payout range |  |  |  |  |  |  |  | 200.00% |  |
Employee Stock |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate number of shares of stock available for issuance (in shares) |  |  |  |  |  |  |  | 12,000,000 |  |
Share-based compensation arrangement by share-based payment award, purchase price of common stock, percent |  |  |  |  |  |  |  | 95.00% |  |
Share-based compensation arrangement by share-based payment award, purchase period |  |  |  |  |  |  |  | 3 months |  |
Share-based compensation arrangement by share-based payment award, shares issued in period (in shares) |  |  |  |  |  |  |  | 377,712 |  |
Employee stock ownership plan (ESOP), weighted average purchase price of shares purchased (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 179.03 |  |

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of shares issued under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
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