Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2025	Dec. 27, 2024	Dec. 29, 2023
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 537.5	$ 549.2
Additions Charged to Costs and Expenses	30.6	16.5	$ 64.6
Additions Charged to Other Accounts	1.3	0.0	(7.3)
Deductions	(9.2)	(28.2)	(16.0)
Balance at End of Period	560.2	537.5	549.2
Accounting Standards Update 2016-13 [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	537.5	549.2	507.9
Balance at End of Period		537.5	549.2
Trade accounts receivable
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	35.0	20.8
Additions Charged to Costs and Expenses	6.5	14.7	2.5
Additions Charged to Other Accounts	0.0	0.0	0.0
Deductions	(3.3)	(0.5)	(3.3)
Balance at End of Period	38.2	35.0	20.8
Trade accounts receivable | Accounting Standards Update 2016-13 [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	35.0	20.8	21.6
Balance at End of Period		35.0	20.8
Deferred tax asset valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	499.8	525.7	483.5
Additions Charged to Costs and Expenses	23.6	1.7	62.2
Additions Charged to Other Accounts	1.3	0.0	(7.3)
Deductions	(5.9)	(27.6)	(12.7)
Balance at End of Period	518.8	499.8	525.7
Provision for Kunia Well Site
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	2.7	2.7	2.8
Additions Charged to Costs and Expenses	0.5	0.1	(0.1)
Additions Charged to Other Accounts	0.0	0.0	0.0
Deductions	0.0	(0.1)	0.0
Balance at End of Period	$ 3.2	$ 2.7	$ 2.7