Accounting Policies and Supplemental Disclosures - Use of Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jan. 01, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Reduction in depreciation and amortization	$ (13,442)	$ (12,131)	$ (37,164)	$ (34,843)	$ (50,984)	$ (47,528)
Net Income	$ 15,328	$ 9,879	$ 39,244	$ 19,801	$ 49,868	$ 20,079
Basic earnings per share (in usd per share)	$ 1.46	$ 0.96	$ 3.76	$ 1.93
Diluted earnings per share (in usd per share)	$ 1.43	$ 0.94	$ 3.67	$ 1.89
Change in useful lives of servers and networking equipment
Restructuring Cost and Reserve [Line Items]
Reduction in depreciation and amortization	$ 760		$ 2,400
Net Income	$ 598		$ 1,900
Basic earnings per share (in usd per share)	$ 0.06		$ 0.18
Diluted earnings per share (in usd per share)	$ 0.06		$ 0.18
Servers
Restructuring Cost and Reserve [Line Items]
Estimated useful lives of assets								5 years
Servers | Change in useful lives of servers and networking equipment
Restructuring Cost and Reserve [Line Items]
Estimated useful lives of assets							6 years