COMPANY- SPONSORED BENEFIT PLANS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Amounts recognized in AOCI (pre-tax):
Net actuarial loss (gain)	$ 1,308	$ 887
Prior service cost (credit)	(9)	(13)
Transition obligation	1	1
Total	1,300	875
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)	101
Prior service cost (credit)	(3)
Total	98
Other changes recognized in other comprehensive income (pre-tax):
Incurred net actuarial loss (gain)	483	(14)	163
Amortization of prior service credit (cost)	4	4	5
Amortization of net actuarial gain (loss)	(62)	(47)	(9)
Total recognized in other comprehensive income	425	(57)	159
Total recognized in net periodic benefit cost and other comprehensive income	518	29	206
Pension Benefits
Amounts recognized in AOCI (pre-tax):
Net actuarial loss (gain)	1,329	942
Prior service cost (credit)	3	4
Transition obligation	1	1
Total	1,333	947
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)	101
Prior service cost (credit)	1
Total	102
Other changes recognized in other comprehensive income (pre-tax):
Incurred net actuarial loss (gain)	451	(18)	142
Amortization of prior service credit (cost)	(1)	(1)	(2)
Amortization of net actuarial gain (loss)	(64)	(50)	(14)
Total recognized in other comprehensive income	386	(69)	126
Total recognized in net periodic benefit cost and other comprehensive income	456	(4)	157
Other Benefits
Amounts recognized in AOCI (pre-tax):
Net actuarial loss (gain)	(21)	(55)
Prior service cost (credit)	(12)	(17)
Total	(33)	(72)
Amounts in AOCI expected to be recognized as components of net periodic pension or postretirement benefit costs in the next fiscal year (pre-tax):
Prior service cost (credit)	(4)
Total	(4)
Other changes recognized in other comprehensive income (pre-tax):
Incurred net actuarial loss (gain)	32	4	21
Amortization of prior service credit (cost)	5	5	7
Amortization of net actuarial gain (loss)	2	3	5
Total recognized in other comprehensive income	39	12	33
Total recognized in net periodic benefit cost and other comprehensive income	$ 62	$ 33	$ 49