Other Assets - Summary (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Assets [Abstract]
Goodwill	$ 4,187	$ 3,851	$ 3,786
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total	Total
Right-of-use lease assets	$ 804	$ 770
Other intangible assets, at amortized cost	123	98
Other	16,065	14,395
Total	$ 21,179	$ 19,114