Significant Components of Deferred Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Jan. 01, 2011
Deferred tax liabilities:
Depreciation	$ 53.7	$ 42.3
Amortization of intangibles	965.1	778.8
Liability on undistributed foreign earnings	421.8	442.9
Discharge of indebtedness	26.1	15.5
Inventories	29.0	19.0
Other	103.9	62.9
Total deferred tax liabilities	1,599.6	1,361.4
Deferred tax assets:
Employee benefit plans	417.4	329.0
Doubtful accounts	17.2	12.1
Accruals	139.8	147.2
Restructuring charges	9.6	30.1
Debt amortization	24.7	33.5
Operating loss and tax credit carryforwards	361.5	330.6
Other	176.6	47.7
Total deferred tax assets	1,146.8	930.2
Net Deferred Tax Liabilities before Valuation Allowance	452.8	431.2
Valuation allowance	308.7	265.8
Net Deferred Tax Liabilities after Valuation Allowance	$ 761.5	$ 697.0