Earnings Per Share (EPS) (Shares Repurchased) (Details) - USD ($) shares in Millions	3 Months Ended	6 Months Ended
	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015
Equity, Class of Treasury Stock [Line Items]
Amount paid to repurchase outstanding shares		$ 19,000,000	$ 115,000,000
Accelerated Share Repurchase (ASR)
Equity, Class of Treasury Stock [Line Items]
Agreement to repurchase shares, amount	$ 100,000,000		$ 100,000,000
Number of shares repurchased and retired	2.4
Amount paid to repurchase outstanding shares	$ 100,000,000