BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COSTS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 05, 2016	Nov. 07, 2015	Nov. 05, 2016	Nov. 07, 2015
Pension Benefits
Components of net periodic benefit cost:
Service cost	$ 14	$ 15	$ 50	$ 50
Interest cost	44	37	145	127
Expected return on plan assets	(55)	(52)	(183)	(176)
Amortization of:
Actuarial loss (gain)	16	23	50	78
Net periodic benefit cost	19	23	62	79
Contributions into Fund				5
Other Benefits
Components of net periodic benefit cost:
Service cost	2	2	7	8
Interest cost	2	2	8	8
Amortization of:
Prior service cost	(2)	(2)	(6)	(8)
Actuarial loss (gain)	$ (2)	(1)	(7)	(4)
Net periodic benefit cost		$ 1	$ 2	$ 4