Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 26, 2022	Dec. 26, 2021	Jun. 27, 2021
Assets
Contract assets - current	$ 419.7	$ 286.9	$ 257.9
Contract assets - long term	148.2	104.2	72.6
Total	567.9	391.1	330.5
Liabilities
Contract liabilities - current	106.8	114.1	174.7
Contract liabilities - long term	2.5	7.1	21.3
Total	$ 109.3	$ 121.2	$ 196.0

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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