COMPANY-SPONSORED BENEFIT PLANS - LEVEL 3 RECONCILIATION (Details) - Recurring - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016
Roll-forward of assets measured at fair value using Level 3 inputs
Fair value of plan assets at beginning of fiscal year	$ 3,045
Fair value of plan assets at end of fiscal year	3,138	$ 3,045
Significant Unobservable Inputs (Level 3)
Roll-forward of assets measured at fair value using Level 3 inputs
Fair value of plan assets at beginning of fiscal year	140
Fair value of plan assets at end of fiscal year	132	140
Hedge Funds
Roll-forward of assets measured at fair value using Level 3 inputs
Fair value of plan assets at beginning of fiscal year	1,104
Fair value of plan assets at end of fiscal year	1,101	1,104
Hedge Funds | Significant Unobservable Inputs (Level 3)
Roll-forward of assets measured at fair value using Level 3 inputs
Fair value of plan assets at beginning of fiscal year	61	56
Contributions into Fund	10	13
Realized gains	1
Unrealized losses (gains)	(1)	(1)
Distributions	(4)	(7)
Fair value of plan assets at end of fiscal year	67	61
Real Estate
Roll-forward of assets measured at fair value using Level 3 inputs
Fair value of plan assets at beginning of fiscal year	103
Fair value of plan assets at end of fiscal year	87	103
Real Estate | Significant Unobservable Inputs (Level 3)
Roll-forward of assets measured at fair value using Level 3 inputs
Fair value of plan assets at beginning of fiscal year	79	84
Contributions into Fund	9	9
Realized gains	12	5
Unrealized losses (gains)	(2)	2
Distributions	(32)	(21)
Other	(1)
Fair value of plan assets at end of fiscal year	$ 65	$ 79