Investments in Unconsolidated Subsidiaries and Affiliates - Summary of Combined Results of Operations and Financial Position Reported By Investees Accounted Using Equity Method (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net revenue	$ 17,060	$ 22,080	[1]	$ 21,541
Net income	1,259	2,287	[1],[2]	2,039
Statement of Financial Position [Abstract]
Total assets	42,933	46,267	[3]
Total liabilities	35,165	38,117	[3]
Total equity	7,713	8,096	[3]	6,927	$ 6,808
Unconsolidated Subsidiaries and Affiliates
Income Statement [Abstract]
Net revenue	2,621	2,748		2,096
Income before taxes	481	632		348
Net income	380	477		$ 280
Statement of Financial Position [Abstract]
Total assets	7,558	7,568
Total liabilities	6,430	6,347
Total equity	$ 1,128	$ 1,221

[1] See Note 23 Immaterial Revision of Prior Period Financial Statements

[2] See Note 23 Immaterial Revision of Prior Period Financial Statements.

[3] See Note 23 Immaterial Revision of Prior Period Financial Statements.