Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Goodwill	$ 3,786	$ 3,804	$ 3,852
Other intangible assets, at amortized cost	146	201
Other	13,757	13,239
Total	$ 17,689	$ 17,244