Restructuring and Other Charges - Summary of Cumulative Amounts Incurred for Restructuring and Other Activities Costs (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Cumulative amounts incurred to date	$ 970,873
Lease Abandonments and Impairments
Restructuring Cost and Reserve [Line Items]
Cumulative amounts incurred to date	383,341
Voluntary and Involuntary Terminations
Restructuring Cost and Reserve [Line Items]
Cumulative amounts incurred to date	145,305
Outside Services
Restructuring Cost and Reserve [Line Items]
Cumulative amounts incurred to date	298,670
Other
Restructuring Cost and Reserve [Line Items]
Cumulative amounts incurred to date	$ 143,557