Stockholders' Equity (Schedule of Stock Repurchases) (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
	Oct. 02, 2015 USD ($) $ / shares shares	Oct. 02, 2015 USD ($) $ / shares shares
Equity [Abstract]
Total number of shares repurchased | shares	7.6	11.3
Dollar amount of shares repurchased	$ 160	$ 250
Average price paid per share | $ / shares	$ 21.13	$ 22.20
Remaining authorization at end of period	$ 2,408	$ 2,408