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Share-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Share-based compensation expense | $ 141 | $ 107 | $ 128
Share-based compensation expense related income tax benefit | 88 | 64 | 64
Capitalized share-based compensation expense | $ 0 | $ 0 | $ 0
Closing stock price (in dollars per share) | $ 410.71 |  |
Minimum |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Percentage of shares issues in settlement of a vested award | 0.00% |  |
Maximum |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Percentage of shares issues in settlement of a vested award | 200.00% |  |
Stock Options |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Weighted-average fair values of options granted (in dollars per share) | $ 83.69 | $ 45.07 | $ 37.80
Total intrinsic value of stock options exercised | $ 283 | $ 176 | $ 294
Cash received from option exercises | 33 | 36 | 50
Total cash tax benefit | 86 | $ 61 | $ 64
Unrecognized compensation expense | $ 17 |  |
Weighted average performance period (years) | 1 year |  |
Granted (in shares) | 361,000 |  |
Performance-Based |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Unrecognized compensation expense | $ 48 |  |
Granted (in dollars per share) | $ 385.10 |  |
Granted (in shares) | 342,000 |  |
Awards to be settled in cash (in shares) | 11,000 |  |
Performance Shares ROC |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Granted (in dollars per share) | $ 340.80 | $ 257.63 | $ 241.10
Performance Shares TSR |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Granted (in dollars per share) | $ 489.33 | 301.42 | 301.04
Restricted Stock |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Unrecognized compensation expense | $ 42 |  |
Granted (in dollars per share) | $ 332.69 | $ 260.27 | $ 242.60
Granted (in shares) | 160,839 |  |
Awards to be settled in cash (in shares) | 17,000 |  |
2021 Plan |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Number of shares authorized for grant (in shares) | 7,661,431 |  |
Authorized for issuance (in shares) | 2,452,443 |  |
Service period | 3 years |  |
2021 Plan | Minimum |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Service period | 1 year |  |
2021 Plan | Maximum |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Exercisable period | 10 years |  |
2021 Plan | Performance-Based |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Service period | 3 years |  |
Granted (in shares) | 341,915 |  |
2019 Plan | Performance-Based |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Service period | 3 years |  |
Upward adjustment to awards granted (in shares) | 201,120 |  |

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