Income Taxes (Tables)

6 Months Ended

Oct. 30, 2015

Income Tax Disclosure [Abstract]

Effective Tax Rates

Our effective tax rates for the periods presented were as follows:

	Six Months Ended
	October 30, 2015			October 24, 2014
Effective tax rates		31.1	%		28.8	%

Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions):

	Six Months Ended
	October 30, 2015			October 24, 2014
Balance at beginning of period	$	272		$	236
Additions based on tax positions related to the current year		7			13
Additions for tax positions of prior years		20			99
Decreases for tax positions of prior years		(38	)		(19	)
Settlements		(52	)		(54	)
Balance at end of period	$	209		$	275