Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 27, 2021	Dec. 27, 2020	Jun. 28, 2020
ASSETS
Restricted cash	$ 83.1	$ 73.2	$ 71.9
Accounts receivable, allowance for doubtful accounts	30.5	28.1	28.0
Property, plant and equipment, accumulated depreciation	589.1	553.0	528.2
Other intangibles, accumulated amortization	$ 1,002.5	$ 964.6	$ 855.0
Preference stock, par value (in dollars per share)	$ 2.50	$ 2.50	$ 2.50
Preference stock, authorized shares (in shares)	5,000,000	5,000,000	5,000,000
Preference stock, issued (in shares)	0	0	0
Common stock, par value (in dollars per share)	$ 0.50	$ 0.50	$ 0.50
Common stock, authorized shares (in shares)	600,000,000	600,000,000	600,000,000
Common stock, issued (in shares)	220,286,736	220,286,736	220,286,736
Treasury stock (in shares)	82,617,426	82,979,403	83,264,365