ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - CHANGES IN AOCI BY COMPONENT (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	$ 6,820
Amounts reclassified out of AOCI	21	$ 54	$ 23
Balance at the end of the period	6,698	6,820
Accumulated Other Comprehensive Gain (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	(680)	(812)
OCI before reclassifications	(56)	78
Amounts reclassified out of AOCI	21	54
Total other comprehensive income (loss)	(35)	132
Balance at the end of the period	(715)	(680)	(812)
Cash Flow Hedging Activities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	(51)	(49)
OCI before reclassifications	47	(3)
Amounts reclassified out of AOCI	2	1
Total other comprehensive income (loss)	49	(2)
Balance at the end of the period	(2)	(51)	(49)
OCI before reclassifications, tax	27	(2)
Available for sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	20	17
OCI before reclassifications	(6)	3
Amounts reclassified out of AOCI	(14)
Total other comprehensive income (loss)	(20)	3
Balance at the end of the period		20	17
OCI before reclassifications, tax	(3)	2
Amounts reclassified out of AOCI, tax	(13)
Pension and Postretirement Defined Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period	(649)	(780)
OCI before reclassifications	(97)	78
Amounts reclassified out of AOCI	33	53	22
Total other comprehensive income (loss)	(64)	131
Balance at the end of the period	(713)	(649)	(780)
OCI before reclassifications, tax	(59)	45
Amounts reclassified out of AOCI, tax	$ 20	$ 32	$ 13