Recent Accounting Pronouncements (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 28, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 2,133.7	$ 1,996.5
Operating lease liability		$ 2,231.0
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	2,133.7
Operating lease liability	2,320.0
Accounting Standards Update 2018-11
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative adjustment from adoption of new accounting standard	63.7
Cumulative effect on retained earnings	$ (14.8)