Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	Sep. 27, 2014	Dec. 28, 2013
Assets
Derivative assets	$ 4.0	$ 3.2
Liabilities
Derivative liabilities	28.6	4.7
Recurring
Assets
Trading securities	17.8	17.7
Short-term investments		114.5
Derivative assets	4.0	3.2
Liabilities
Derivative liabilities	28.6	4.7
Recurring \| Cash and Cash Equivalents
Assets
Trading securities	0.3	0.3
Recurring \| Other current assets
Assets
Trading securities	17.5	17.4
Quoted Prices in Active Markets (Level 1) \| Recurring
Assets
Trading securities	6.5	7.6
Derivative assets		0.1
Liabilities
Derivative liabilities	0.2
Significant Other Observable Inputs (Level 2) \| Recurring
Assets
Trading securities	11.3	10.1
Short-term investments		114.5
Derivative assets	4.0	3.1
Liabilities
Derivative liabilities	$ 28.4	$ 4.7

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Fair value, before 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 elected not to be offset. Excludes assets not subject to a master netting arrangement.

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-Publisher FASB

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Fair value, before 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 liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

+ References

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Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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