Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Guarantor Obligations
Guarantees, maximum potential amount of future payments	$ 24	$ 23
Total assets	34,423	34,084
Liabilities	31,327	31,194
Variable Interest Entity, Primary Beneficiary
Guarantor Obligations
Total assets	1,010	1,140
Liabilities	1,010	1,140
Maximum
Guarantor Obligations
Related recorded liability	$ 1	$ 1