Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (251)	$ (395)	$ (7)	$ (866)
Other comprehensive income
Pension and postretirement adjustments, net of tax	127	64	177	128
Currency translation adjustments, net of tax	0	0	1	0
Total other comprehensive income	127	64	178	128
Comprehensive income (loss) attributable to Holdings' shareholders	$ (124)	$ (331)	$ 171	$ (738)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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