Supplemental Disclosure (Details 1) - USD ($) $ in Millions	9 Months Ended
	Oct. 28, 2016	Oct. 30, 2015
Supplemental disclosures of cash flow information
Cash paid for interest, net of amount capitalized	$ 588	$ 501
Cash paid for income taxes, net	1,657	1,654
Non-cash investing and financing activities:
Non-cash property acquisitions, including assets acquired under capital lease	72	74
Cash dividends declared but not paid	$ 306	$ 257