Revenues - Revenue by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Hedging gains (losses)	$ (112)	$ 102	$ 148	$ 174
Revenues	96,428	84,742	186,662	165,281
Google Services
Segment Reporting Information [Line Items]
Revenue from contract with customers	82,543	73,928	159,807	144,326
Google Services | Google Search & other
Segment Reporting Information [Line Items]
Revenue from contract with customers	54,190	48,509	104,892	94,665
Google Services | YouTube ads
Segment Reporting Information [Line Items]
Revenue from contract with customers	9,796	8,663	18,723	16,753
Google Services | Google Network
Segment Reporting Information [Line Items]
Revenue from contract with customers	7,354	7,444	14,610	14,857
Google Services | Google advertising
Segment Reporting Information [Line Items]
Revenue from contract with customers	71,340	64,616	138,225	126,275
Google Services | Google subscriptions, platforms, and devices
Segment Reporting Information [Line Items]
Revenue from contract with customers	11,203	9,312	21,582	18,051
Google Cloud
Segment Reporting Information [Line Items]
Revenue from contract with customers	13,624	10,347	25,884	19,921
Other Bets
Segment Reporting Information [Line Items]
Revenue from contract with customers	$ 373	$ 365	$ 823	$ 860