Income Taxes Effective Income Tax Rate Reconciliation (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Reconciliation (Table Amounts) [Abstract]
Income tax expense at statutory rate	$ 1,053	$ 493	$ 1,226
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Research credit	$ (361)	$ (210)	$ (177)
Research credit, Percent	(7.20%)	(8.90%)	(3.00%)
Effective Income Tax Rate Reconciliation, FDII, Percent	0.30%	(2.70%)	(1.10%)
Effective Income Tax Rate Reconciliation, FDII, Amount	$ 13	$ (63)	$ (66)
Income Tax Reconciliation Deductions Taxing Authorities Settlements	$ 0	$ (1)	$ (86)
Income Tax Reconciliation Deductions Taxing Authorities Settlements, Percent	0.00%	0.00%	(1.50%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	$ 145	$ 69	$ 22
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	2.90%	2.90%	0.40%
Other, net	$ (8)	$ 2	$ 21
Other net, Percent	(0.20%)	0.10%	0.30%
Total federal and foreign income tax expense	$ 842	$ 290	$ 940
Effective income tax rate	16.80%	12.40%	16.10%