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Income Taxes - Federal Statutory Tax Rate and Income Tax Expense (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Income tax expense at statutory rate | $ 450 | $ 318 | $ 326
State income taxes, net of federal benefit | 71 | 76 | 55
Non-U.S. tax expense on non-U.S. earnings | 15 | 1 | 8
U.S. tax expense (benefit) on undistributed non-U.S. earnings | (44) | (43) | 6
Stock compensation | (33) | (68) | (32)
Valuation allowances | (13) | (51) | (34)
Research credits | (19) | (16) | (20)
Reserve for uncertain tax positions | (3) | (6) | (10)
Other tax expense (benefit) | 8 | 14 | 3
Total income tax expense | $ 432 | $ 148 | $ 302
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
Income tax expense at statutory rate | 21.00% | 21.00% | 21.00%
State income taxes, net of federal benefit | 3.30% | 5.00% | 3.50%
Non-U.S. tax expense on non-U.S. earnings | 0.70% | 0.10% | 0.50%
U.S. tax expense (benefit) on undistributed non-U.S. earnings | (2.10%) | (2.80%) | 0.40%
Intra-group IP transfer | 0.00% | (5.10%) | 0.00%
Stock compensation | (1.50%) | (4.50%) | (2.10%)
Valuation allowances | (0.60%) | (3.40%) | (2.20%)
Research credits | (0.90%) | (1.10%) | (1.30%)
Reserve for uncertain tax positions | (0.10%) | (0.40%) | (0.60%)
Other tax expense (benefit) | 0.40% | 0.90% | 0.20%
Total income tax expense (benefit), percent | 20.10% | 9.80% | 19.50%
Intellectual Property |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Intra-group IP transfer | $ 0 | $ (77) | $ 0

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