Stockholder's Equity (Stock Repurchase Program) (Textual) (Details) (USD $)	6 Months Ended				3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	1 Months Ended
	Oct. 03, 2014	Sep. 27, 2013	Oct. 03, 2014 Common Stock	Dec. 31, 2010 Common Stock	Oct. 03, 2014 Common Stock Open Market Purchases	Sep. 27, 2013 Common Stock Open Market Purchases	Oct. 03, 2014 Common Stock Open Market Purchases	Sep. 27, 2013 Common Stock Open Market Purchases	Oct. 03, 2014 Common Stock ASR	Oct. 03, 2014 Accrued Liabilities December 2010 Share Repurchase Program Common Class A	Nov. 06, 2014 Subsequent Event Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized Amount in share repurchases			$ 1,500,000,000.0	$ 1,000,000,000
Shares repurchased during the period					4,646,630	2,044,109	7,055,050	4,873,222	1,258,651		1,290,481
Accelerated Share Repurchases, Settlement (Payment) or Receipt											50,000,000
Accelerated Share Repurchases, Settlement, Shares											31,830
Stock Repurchased During Period, Value	503,000,000	229,000,000			278,000,000	102,000,000	428,000,000	229,000,000	125,000,000		75,000,000
Accelerated Share Repurchases, Final Price Paid Per Share											$ 58.12
Treasury Stock Acquired, Average Cost Per Share					$ 59.77	$ 49.85	$ 60.63	$ 46.91
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	1,100,000,000
Payments for repurchase of common stock	$ 559,000,000	$ 251,000,000								$ 6,000,000