Stockholders' Equity - Capital Return Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jan. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award
Remaining authorized repurchase amount	$ 51,280		$ 51,280
Share repurchase program, authorized amount					$ 50,000
Shares repurchased and retired	$ 8,856	$ 3,698	$ 29,807	$ 13,709
Dividends and dividend equivalents declared (in dollars per share)	$ 0.50		$ 1.50
Dividends paid	$ 1,263	$ 0	$ 3,802	$ 0
January 2017 Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award
Remaining authorized repurchase amount						$ 30,930
Class A
Share-based Compensation Arrangement by Share-based Payment Award
Shares repurchased and retired (in shares)			65
Shares repurchased and retired			$ 29,810
Dividends and dividend equivalents declared (in dollars per share)	$ 0.50		$ 1.50
Dividends paid	$ 1,090		$ 3,280
Class B
Share-based Compensation Arrangement by Share-based Payment Award
Dividends and dividend equivalents declared (in dollars per share)	$ 0.50		$ 1.50
Dividends paid	$ 172		$ 519