Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions		12 Months Ended
		Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves
Beginning balance		$ 112.4	$ 102.0	$ 80.4
Charged to Costs and Expenses		41.1	33.0	28.0
Charged To Other Accounts	[1],[2]	23.7	5.9	12.5
Deductions	[3]	(36.1)	(28.5)	(18.9)
Ending balance		141.1	112.4	102.0
Tax Valuation Allowance
Movement in Valuation Allowances and Reserves
Beginning balance		1,065.0	626.7	516.7
Charged to Costs and Expenses		312.0	461.5	146.2
Charged To Other Accounts	[1],[2]	(8.6)	(0.5)	(6.4)
Deductions	[3]	(309.5)	(22.7)	(29.8)
Ending balance		$ 1,058.9	$ 1,065.0	$ 626.7

[1] Refer to Note Q, Income Taxes, of the Notes to Consolidated Financial Statements in Item 8 for further discussion.

[2] Amounts represent the impact of foreign currency translation, acquisitions and net transfers to/from other accounts.

[3] With respect to the allowance for credit losses, deductions represent amounts charged-off less recoveries of accounts previously charged-off.