Common Stock Repurchase (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Jan. 01, 2016	Jan. 02, 2015	Jan. 03, 2014
Stock Repurchased During Period, Shares			0
Stock Repurchased and Retired During Period, Value	$ 234.4	$ 97.8
Stock Repurchase Program, Remaining Authorized Repurchase Amount	249.9
Retained Earnings [Member]
Stock Repurchased and Retired During Period, Value	180.3	83.0
Two Thousand Fourteen Stock Repurchase Program [Member]
Stock Repurchase Program, Authorized Amount		$ 300.0
Stock Repurchased and Retired During Period, Value	84.3
Two Thousand Fifteen Stock Repurchase Program [Member]
Stock Repurchase Program, Authorized Amount	400.0
Stock Repurchased and Retired During Period, Value	$ 75.1
Open Market Purchases [Member]
Stock Repurchased During Period, Shares	7,500,000	3,200,000
Stock Repurchased And Retired During Period Shares Average Cost Per Share	$ 21.29	$ 30.22
Stock Repurchased and Retired During Period, Value	$ 159.4	$ 97.8
September 2015 Share Delivery [Member]
Stock Repurchased During Period, Shares	3,700,000
Accelerated Share Repurchases, Settlement (Payment) or Receipt	$ 75.0
Accelerated Share Repurchases, Final Price Paid Per Share	$ 20.11

Stock Repurchased And Retired During Period Shares Average Cost Per Share

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- Definition

Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653

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- Definition

Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement.

+ References

+ Details

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

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- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

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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.

+ References

+ Details

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- Details

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