Restructuring and Other Charges - Summary of Cumulative Amounts Incurred for Restructuring and Other Activities Costs (Details) $ in Thousands	Dec. 29, 2017 USD ($)
Restructuring Cost And Reserve [Line Items]
Cumulative Amount Incurred to Date	$ 476,087
Lease Abandonments
Restructuring Cost And Reserve [Line Items]
Cumulative Amount Incurred to Date	242,222
Involuntary Terminations
Restructuring Cost And Reserve [Line Items]
Cumulative Amount Incurred to Date	186,763
Outside Services
Restructuring Cost And Reserve [Line Items]
Cumulative Amount Incurred to Date	32,957
Other Restructuring Related
Restructuring Cost And Reserve [Line Items]
Cumulative Amount Incurred to Date	$ 14,145