Condensed Consolidated Statements of Deficit (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			$ (3,824)	$ (1,956)
Comprehensive loss
Net loss			(7)	(866)
Pension and postretirement adjustments, net of tax	$ 127	$ 64	177	128
Currency translation adjustments, net of tax	0	0	1	0
Total Comprehensive Income (Loss)			171	(738)
Stock awards			(1)	(1)
Associate stock purchase			3	4
Distribution to noncontrolling interest				(2)
Ending Balance	$ (3,651)	$ (2,693)	$ (3,651)	$ (2,693)
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)			107	107
Beginning Balance			$ 1	$ 1
Comprehensive loss
Ending Balance (in shares)	107	107	107	107
Ending Balance	$ 1	$ 1	$ 1	$ 1
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			(5,891)	(5,928)
Comprehensive loss
Stock awards			27	15
Associate stock purchase			3	4
Ending Balance	(5,861)	(5,909)	(5,861)	(5,909)
Capital in Excess of Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			9,130	9,173
Comprehensive loss
Stock awards			(28)	(16)
Ending Balance	9,102	9,157	9,102	9,157
Retained Earnings (Deficit)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			(5,512)	(3,291)
Comprehensive loss
Net loss			(7)	(866)
Ending Balance	(5,519)	(4,157)	(5,519)	(4,157)
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			(1,552)	(1,918)
Comprehensive loss
Pension and postretirement adjustments, net of tax			177	128
Currency translation adjustments, net of tax			1
Ending Balance	(1,374)	(1,790)	(1,374)	(1,790)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			0	7
Comprehensive loss
Distribution to noncontrolling interest				(2)
Ending Balance	$ 0	$ 5	$ 0	$ 5