Income Taxes - Federal Statutory Tax Rate and Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	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