Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 47,516	$ 39,071	$ 89,830	$ 75,527
United States and Canada
Disaggregation of Revenue [Line Items]
Revenue	18,454	14,640	35,323	28,287
Europe
Disaggregation of Revenue [Line Items]
Revenue	11,128	9,153	20,749	17,557
Asia-Pacific
Disaggregation of Revenue [Line Items]
Revenue	12,858	10,967	24,097	21,279
Rest Of World
Disaggregation of Revenue [Line Items]
Revenue	5,076	4,311	9,661	8,404
Family of Apps
Disaggregation of Revenue [Line Items]
Revenue	47,146	38,718	89,048	74,734
Reality Labs
Disaggregation of Revenue [Line Items]
Revenue	370	353	782	793
Advertising | Family of Apps
Disaggregation of Revenue [Line Items]
Revenue	46,563	38,329	87,955	73,965
Other revenue | Family of Apps
Disaggregation of Revenue [Line Items]
Revenue	$ 583	$ 389	$ 1,093	$ 769