COMPANY-SPONSORED BENEFIT PLANS - AMOUNTS RECOGNIZED IN AOCI AND OTHER CHANGES IN OCI (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Amounts recognized in AOCI (pre-tax):
Net actuarial loss (gain)	$ 910	$ 1,188
Prior service credit	(77)	(58)
Total	833	1,130
Amounts in AOCI expected to be recognized as components of net periodic pension or postretirement benefit costs in the next fiscal year (pre-tax):
Net actuarial loss (gain)	72
Prior service credit	(11)
Total	61
Other changes recognized in other comprehensive income (pre-tax):
Incurred net actuarial loss (gain)	302	156	$ (122)
Amortization of prior service credit	8	8	11
Amortization of net actuarial gain (loss)	(77)	(61)	(95)
Settlement recognition of net actuarial loss	(502)
Other	(28)		(2)
Total recognized in other comprehensive income (loss)	(297)	103	(208)
Total recognized in net periodic benefit cost and other comprehensive income	293	198	(104)
Pension Benefits
Amounts recognized in AOCI (pre-tax):
Net actuarial loss (gain)	1,040	1,308
Total	1,040	1,308
Amounts in AOCI expected to be recognized as components of net periodic pension or postretirement benefit costs in the next fiscal year (pre-tax):
Net actuarial loss (gain)	82
Total	82
Other changes recognized in other comprehensive income (pre-tax):
Incurred net actuarial loss (gain)	322	165	(83)
Amortization of net actuarial gain (loss)	(88)	(71)	(102)
Settlement recognition of net actuarial loss	(502)
Total recognized in other comprehensive income (loss)	(268)	94	(185)
Total recognized in net periodic benefit cost and other comprehensive income	323	188	(82)
Other Benefits
Amounts recognized in AOCI (pre-tax):
Net actuarial loss (gain)	(130)	(120)
Prior service credit	(77)	(58)
Total	(207)	(178)
Amounts in AOCI expected to be recognized as components of net periodic pension or postretirement benefit costs in the next fiscal year (pre-tax):
Net actuarial loss (gain)	(10)
Prior service credit	(11)
Total	(21)
Other changes recognized in other comprehensive income (pre-tax):
Incurred net actuarial loss (gain)	(20)	(9)	(39)
Amortization of prior service credit	8	8	11
Amortization of net actuarial gain (loss)	11	10	7
Other	(28)		(2)
Total recognized in other comprehensive income (loss)	(29)	9	(23)
Total recognized in net periodic benefit cost and other comprehensive income	$ (30)	$ 10	$ (22)