Income Taxes (Tables)

6 Months Ended

Jan. 28, 2017

Income Tax Disclosure [Abstract]

Income Tax Provision

The following table provides details of income taxes (in millions, except percentages):

	Three Months Ended						Six Months Ended
	January 28, 2017			January 23, 2016			January 28, 2017			January 23, 2016
Income before provision for income taxes	$	2,963		$	3,306		$	5,916		$	6,443
Provision for income taxes	$	615		$	159		$	1,246		$	866
Effective tax rate	20.8		%	4.8		%	21.1		%	13.4		%