Share-Based Compensation (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for awards	8.1
Typical vesting period for option awards	5 years
Contractual term of options	10 years
Associate stock purchase plan discount	15.00%
Authorized preferred shares	1.0us-gaap_PreferredStockSharesAuthorized
Par value per share of preferred stock	$ 0.01
Stock Repurchase Program, Authorized Amount	$ 317.0	$ 170.0
Stock Repurchased During Period, Shares	4.1	3.6
Stock Repurchase Program, Increase in Authorized Amount	100.0
Payments for Repurchase of Common Stock, Excluding Transaction Costs	217.0	170.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount	100.0
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	136.1
Period of recognition for remaining share-based compensation expense	3 years 1 month 5 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	$ 11.0
Period of recognition for remaining share-based compensation expense	1 year 3 months 15 days

Associate Stock Purchase Plan Discount on Company Stock

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- Definition

Payments for Repurchase of Common Stock, Excluding Transaction Costs

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- Definition

Stock Repurchase Program, Increase in Authorized Amount

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- Definition

The maximum term of the deferred compensation arrangement.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Paragraph 2

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

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-Number 210

-Section 02

-Paragraph 29

-Article 5

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- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

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- Definition

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

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