Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		$ 59.4	$ 39.0	$ 42.6
Charged to costs and expense		161.6	148.7	65.1
Deductions		168.9	128.3	68.7
Balance at end of period		52.1	59.4	39.0
Allowance for doubtful accounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		3.3	4.0	6.7
Charged to costs and expense		5.0	1.8	(2.4)
Deductions	[1]	2.6	2.5	0.3
Balance at end of period		5.7	3.3	4.0
Allowance for sales returns [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		15.3	16.6	15.6
Charged to costs and expense		134.6	106.0	52.5
Deductions	[2]	136.8	107.3	51.5
Balance at end of period		13.1	15.3	16.6
Allowance for cash discounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		7.8	7.7	11.2
Charged to costs and expense		14.1	10.9	9.4
Deductions	[3]	9.3	10.8	12.9
Balance at end of period		12.6	7.8	7.7
Inventory valuation allowances [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		33.0	10.7	9.1
Charged to costs and expense		7.9	30.0	5.6
Deductions	[4]	20.2	7.7	4.0
Balance at end of period		$ 20.7	$ 33.0	$ 10.7

[1] Accounts charged off, net of recoveries.

[2] Actual customer returns.

[3] Discounts given to customers.

[4] Adjustment upon disposal of related inventories.