Revenues - Revenue by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues from contract with customer	$ 307,394	$ 282,836	$ 257,637
Hedging gains (losses)	236	1,960	149
Google Services
Segment Reporting Information [Line Items]
Revenues from contract with customer	272,543	253,528	237,529
Google Services \| Google Search & other
Segment Reporting Information [Line Items]
Revenues from contract with customer	175,033	162,450	148,951
Google Services \| YouTube ads
Segment Reporting Information [Line Items]
Revenues from contract with customer	31,510	29,243	28,845
Google Services \| Google Network
Segment Reporting Information [Line Items]
Revenues from contract with customer	31,312	32,780	31,701
Google Services \| Google advertising
Segment Reporting Information [Line Items]
Revenues from contract with customer	237,855	224,473	209,497
Google Services \| Google subscriptions, platforms, and devices
Segment Reporting Information [Line Items]
Revenues from contract with customer	34,688	29,055	28,032
Google Cloud
Segment Reporting Information [Line Items]
Revenues from contract with customer	33,088	26,280	19,206
Other Bets
Segment Reporting Information [Line Items]
Revenues from contract with customer	$ 1,527	$ 1,068	$ 753