Restructuring - Restructuring and Related Costs (Details) - 2022 Restructuring - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 184		$ 804
Plan to Date	$ 7,152		$ 7,152
Family of Apps
Restructuring Cost and Reserve [Line Items]
Plan to Date	6,060		6,060
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	41	247	287	1,054
Plan to Date	5,088		5,088
Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(12)		(30)
Plan to Date	948		948
Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(51)		(220)
Plan to Date	1,116		1,116
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(42)		(153)
Plan to Date	1,470		1,470
Cost of revenue \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3	9	23	67
Plan to Date	354		354
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		(51)		(220)
Plan to Date	1,116		1,116
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges		152		632
Plan to Date	3,477		3,477
Research and development \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	27	159	186	643
Plan to Date	3,078		3,078
Research and development \| Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(7)		(11)
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		44		178
Plan to Date	1,074		1,074
Marketing and sales \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6	43	41	179
Plan to Date	841		841
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		30		147
Plan to Date	1,131		1,131
General and administrative \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5	36	37	165
Plan to Date	815		815
General and administrative \| Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(6)		(18)
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