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Stockholders' Equity - Capital Return Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended	3 Months Ended
	Feb. 01, 2024	Mar. 31, 2024	Mar. 31, 2024	Mar. 31, 2023	Jan. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award
Remaining authorized repurchase amount		$ 66,400	$ 66,400
Share repurchase program, authorized amount					$ 50,000
Shares repurchased and retired			14,635	$ 9,218
Dividends paid			$ 1,273	$ 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)			34
Shares repurchased and retired			$ 14,640
Dividends payable (in dollars per share)	$ 0.50		$ 0.50
Dividends paid		1,100	$ 1,100
Class B
Share-based Compensation Arrangement by Share-based Payment Award
Dividends payable (in dollars per share)	$ 0.50		$ 0.50
Dividends paid		$ 174	$ 174