-Changes in AOCL (Details) $ in Millions	6 Months Ended
	Jul. 29, 2017 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at January 28, 2017	$ (1,053)
Balance at July 29, 2017	(471)
Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at January 28, 2017	(1,053)
Foreign currency translation adjustment	10
Divestiture of businesses (net of taxes of $12)	(572)
Taxes related to divestiture of businesses	12
Balance at July 29, 2017	(471)
Parent [Member] | Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at January 28, 2017	(761)
Foreign currency translation adjustment	10
Divestiture of businesses (net of taxes of $12)	(282)
Balance at July 29, 2017	(469)
Parent [Member] | Defined Benefit Cost [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at January 28, 2017	(292)
Foreign currency translation adjustment	0
Divestiture of businesses (net of taxes of $12)	(290)
Balance at July 29, 2017	$ (2)