Accounting Policies and Supplemental Disclosures - Use of Estimates (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		12 Months Ended
	Jan. 01, 2022	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation and amortization		$ (8,978)	$ (7,508)	$ (35,766)		$ (27,397)
Net income (loss)		$ (3,844)	$ 8,107	$ 21,413		$ 26,903
Basic earnings per share (in usd per share)		$ (7.56)	$ 16.09
Diluted earnings per share (in usd per share)		$ (7.56)	$ 15.79
Change in useful lives of servers and networking equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization		$ 973
Net income (loss)		$ 769
Basic earnings per share (in usd per share)		$ 1.51
Diluted earnings per share (in usd per share)		$ 1.51
Servers
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets					4 years
Servers | Change in useful lives of servers and networking equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets	5 years
Networking equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets					5 years
Networking equipment | Change in useful lives of servers and networking equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets	6 years