Restructuring - Summary of Restructuring Activities (Details) $ in Millions	9 Months Ended
Oct. 03, 2020 USD ($)
Restructuring Cost And Reserve [Line Items]
Accrual as of January 1, 2020	$ 157.7
2020 Charges	109.1
Utilization cash	(115.3)
Utilization, non-cash	(14.5)
Accrual as of October 3, 2020	137.0
Employee termination benefits
Restructuring Cost And Reserve [Line Items]
Accrual as of January 1, 2020	152.8
2020 Charges	84.3
Utilization cash	(104.9)
Utilization, non-cash	0.0
Accrual as of October 3, 2020	132.2
Asset impairment charges
Restructuring Cost And Reserve [Line Items]
Accrual as of January 1, 2020	0.0
2020 Charges	14.5
Utilization cash	0.0
Utilization, non-cash	(14.5)
Accrual as of October 3, 2020	0.0
Contract termination costs
Restructuring Cost And Reserve [Line Items]
Accrual as of January 1, 2020	4.9
2020 Charges	0.9
Utilization cash	(1.0)
Utilization, non-cash	0.0
Accrual as of October 3, 2020	4.8
Other related costs
Restructuring Cost And Reserve [Line Items]
Accrual as of January 1, 2020	0.0
2020 Charges	9.4
Utilization cash	(9.4)
Utilization, non-cash	0.0
Accrual as of October 3, 2020	$ 0.0

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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