Segment Information - Geographical Data (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Geographic Data
Total revenues	$ 48,712	$ 57,342	$ 42,078
Long-Lived Assets	22,411	22,460
United States
Geographic Data
Total revenues	42,308	46,903	34,458
Long-Lived Assets	18,591	18,658
Canada
Geographic Data
Total revenues	6,404	10,439	$ 7,620
Long-Lived Assets	$ 3,820	$ 3,802