Income Taxes - Schedule of Reconciliation Between Actual Income Tax (Benefit) Expense and Statutory U.S. Federal Amount Computed by Applying the Federal Income Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Consolidated total amount, pre-tax income (loss)	$ 3,870	$ 2,867	$ 3,772
U.S. federal income tax at statutory rate, tax expense (benefit)	$ 813	$ 602	$ 792
U.S. federal income tax at statutory rate (as a percent)	21.00%	21.00%	21.00%
Tax exempt interest	$ (8)	$ (14)	$ (18)
Tax exempt interest (as a percent)	(0.20%)	(0.50%)	(0.50%)
Uncertain tax positions	$ 17	$ 169	$ (12)
Uncertain tax positions (as a percent)	0.40%	5.90%	(0.30%)
Dispositions of subsidiaries	$ (1)	$ (143)	$ 0
Dispositions of subsidiaries (as a percent)	0.00%	(5.00%)	0.00%
Non-deductible transfer pricing charges	$ 13	$ 16	$ 15
Non-deductible transfer pricing charges (as a percent)	0.30%	0.60%	0.40%
Effect of foreign operations	$ 110	$ 176	$ 150
Effect of foreign operations (as a percent)	2.80%	6.10%	4.00%
Share-based compensation payments excess tax effect	$ (16)	$ (21)	$ (13)
Share-based compensation payments excess tax effect (as a percent)	(0.40%)	(0.70%)	(0.30%)
State and local income taxes	$ 26	$ 23	$ (42)
State income taxes (as a percent)	0.70%	0.80%	(1.10%)
Developments related to prior tax years under IRS review	$ 240	$ (467)	$ 0
Developments related to prior tax years under IRS review (as a percent)	6.20%	(16.30%)	0.00%
Other	$ 9	$ 150	$ 184
Other (as a percent)	0.30%	5.20%	4.80%
Valuation allowance	$ (33)	$ (365)	$ (174)
Valuation allowance (as a percent)	(0.90%)	(12.70%)	(4.60%)
Income tax expense	$ 1,170	$ 126	$ 882
Percent of Pre-Tax Income (Loss)	30.20%	4.40%	23.40%