Shareholders' Equity (Schedule of Share Repurchases) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Apr. 03, 2015
Jan. 02, 2015
Oct. 03, 2014
Apr. 03, 2015
Equity [Abstract]        
Stock Repurchased and Retired During Period, Shares 12.0 0.3 3.0 15.0
Stock Repurchased and Retired During Period, Value $ 706 $ 18 $ 183 $ 907