Restructuring - Restructuring and Related Costs (Details) - 2022 Restructuring - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 344		$ 1,148
Plan to Date	$ 7,160		$ 7,160
Family of Apps
Restructuring Cost and Reserve [Line Items]
Plan to Date	6,070		6,070
Reality Labs
Restructuring Cost and Reserve [Line Items]
Plan to Date	1,090		1,090
Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	8	352	295	1,406
Plan to Date	5,096		5,096
Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		4		(26)
Plan to Date	948		948
Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(12)		(232)
Plan to Date	1,116		1,116
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring charges		13		(140)
Plan to Date	1,471		1,471
Cost of revenue | Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1	25	24	92
Plan to Date	355		355
Cost of revenue | Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0		0
Plan to Date	0		0
Cost of revenue | Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(12)		(232)
Plan to Date	1,116		1,116
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges		230		862
Plan to Date	3,482		3,482
Research and development | Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5	228	191	871
Plan to Date	3,083		3,083
Research and development | Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2		(9)
Plan to Date	399		399
Research and development | Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0		0
Plan to Date	0		0
Marketing and sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges		55		232
Plan to Date	1,075		1,075
Marketing and sales | Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1	54	42	233
Plan to Date	842		842
Marketing and sales | Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1		(1)
Plan to Date	233		233
Marketing and sales | Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0		0
Plan to Date	0		0
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges		46		194
Plan to Date	1,132		1,132
General and administrative | Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1	45	38	210
Plan to Date	816		816
General and administrative | Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1		(16)
Plan to Date	316		316
General and administrative | Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 0		$ 0
Plan to Date	$ 0		$ 0