Summary of Financial Instruments Carrying and Fair Values (Detail) - USD ($) $ in Millions	Apr. 02, 2016	Jan. 02, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	$ 10.7	$ 11.7
Long-term debt, including current maturities	3,822.2	3,797.2
Long-term Debt, Fair Value	4,086.0	4,034.4
Derivative assets	106.0	79.3
Derivative liabilities	162.2	96.1
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	10.3	11.7
Long-term debt, including current maturities	3,822.2	3,797.2
Derivative assets	106.0	79.3
Derivative liabilities	$ 162.2	$ 96.1