Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 684	$ 991
Other investments	149	164
Total investments	833	1,155
Unamortized basis difference for equity-method investments acquired	340	432
Net losses from equity-method investments	343	100	$ 176
Xumo
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 548	$ 849