Stockholders' Equity (Summary of Dividends Declared and Paid) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 28, 2018	Dec. 29, 2017	Dec. 28, 2018	Dec. 29, 2017
Stockholders' Equity Note [Abstract]
Dividends declared and paid	$ 48	$ 47	$ 143	$ 139
Dividend equivalents paid	11	2	26	24
Total dividends and dividend equivalents paid	$ 59	$ 49	$ 169	$ 163