Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Mar. 28, 2021	Dec. 27, 2020	Mar. 29, 2020
ASSETS
Restricted cash	$ 72.1	$ 73.2	$ 86.2
Accounts receivable, allowance for doubtful accounts	32.5	28.1	16.9
Property, plant and equipment, accumulated depreciation	563.5	553.0	513.2
Other intangibles, accumulated amortization	$ 999.7	$ 964.6	$ 932.0
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)	82,724,111	82,979,403	83,279,734