Restructuring - Restructuring and Related Costs (Details) - 2022 Restructuring - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 621
Plan to Date	$ 7,111
Family of Apps
Restructuring Cost and Reserve [Line Items]
Plan to Date	6,030
Reality Labs
Restructuring Cost and Reserve [Line Items]
Plan to Date	1,080
Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	246	807
Plan to Date	5,047
Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(18)
Plan to Date	948
Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(168)
Plan to Date	1,116
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(110)
Plan to Date	1,467
Cost of revenue \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	20	58
Plan to Date	351
Cost of revenue \| Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0
Plan to Date	0
Cost of revenue \| Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(168)
Plan to Date	1,116
Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		480
Plan to Date	3,450
Research and Development Expense [Member] \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	159	484
Plan to Date	3,051
Research and Development Expense [Member] \| Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(4)
Plan to Date	399
Research and Development Expense [Member] \| Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0
Plan to Date	0
Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		134
Plan to Date	1,068
Selling and Marketing Expense [Member] \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	35	136
Plan to Date	835
Selling and Marketing Expense [Member] \| Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(2)
Plan to Date	233
Selling and Marketing Expense [Member] \| Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0
Plan to Date	0
General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		117
Plan to Date	1,126
General and Administrative Expense [Member] \| Facilities Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges	32	129
Plan to Date	810
General and Administrative Expense [Member] \| Severance and Other Personnel Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(12)
Plan to Date	316
General and Administrative Expense [Member] \| Data Center Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 0
Plan to Date	$ 0