Debtor-in-Possession financial information Condensed Combined Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Net sales	$ 2,107	$ 2,278	$ 6,485	$ 6,879
Cost of sales	1,429	1,457	4,247	4,350
Gross margin	678	821	2,238	2,529
Selling, general and administrative expenses	826	835	2,303	2,423
Depreciation and amortization	73	76	223	240
Other income, net	20	59	75	114
Total operating expenses	879	852	2,451	2,549
Operating loss	(201)	(31)	(213)	(20)
Interest expense	(88)	(122)	(317)	(347)
Interest income	1	1	2	2
Reorganization items, net	(334)	0	(334)	0
Loss before income taxes	(622)	(152)	(862)	(365)
Income tax expense	0	(3)	(88)	(8)
Net loss	$ (623)	$ (156)	(953)	$ (377)
Debtor [Member]
Net sales			4,366
Cost of sales			2,926
Gross margin			1,440
Selling, general and administrative expenses			1,650
Depreciation and amortization			135
Other income, net			105
Intercompany income, net			(37)
Total operating expenses			1,643
Operating loss			(203)
Interest expense			(235)
Interest income			9
Reorganization items, net			(334)
Loss before income taxes			(763)
Income tax expense			(2)
Net loss			$ (765)