Summary of Financial Instruments Carrying and Fair Values (Detail) (USD $) In Millions, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	$ 15.0	$ 14.7
Long-term debt, including current maturities	4,261.2	3,889.4
Derivative assets	88.9	91.7
Derivative liabilities	136.2	212.3
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Investments and Securities, at Cost	14.8	14.8
Long-term debt, including current maturities	3,858.0	3,809.3
Derivative assets	88.9	91.7
Derivative liabilities	$ 136.2	$ 212.3

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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