Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 28, 2020	Dec. 29, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 7.3	$ 4.2
Accumulated amortization, operating lease right-of-use assets	117.9	75.2
Property and equipment, accumulated depreciation	459.6	438.3
Intangible assets, accumulated amortization	$ 484.3	$ 465.9
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares (in shares)	150,000,000.0	150,000,000.0
Preferred stock, issued shares (in shares)	0	0
Preferred stock, outstanding shares (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares (in shares)	750,000,000.0	750,000,000.0
Common stock, issued shares (in shares)	134,000,000	133,600,000
Common stock, outstanding shares (in shares)	134,000,000	133,600,000