Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 26, 2021	Dec. 27, 2020
Statement of Financial Position [Abstract]
Restricted cash	$ 35.8	$ 73.2
Accounts receivable, allowance for doubtful accounts	$ 22.9	$ 28.1
Preference stock, par value (in dollars per share)	$ 2.50	$ 2.50
Preference stock, shares authorized (in shares)	5,000,000	5,000,000
Preference stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.50	$ 0.50
Common stock, shares authorized (in shares)	600,000,000	600,000,000
Common stock, shares issued (in shares)	220,286,736	220,286,736
Treasury stock, at cost, shares (in shares)	82,066,136	82,979,403