Retirement Plans (Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Settlement charges	$ (46)	$ (12)	$ 0	$ 0	$ (15)	$ (23)	$ (50)	$ 0	$ (58)	$ (88)	$ (105)
Settlement charges	$ 46	$ 12	$ 0	$ 0	$ 15	$ 23	$ 50	$ 0	58	88	105
Supplemental Employee Retirement Plan
Service cost									0	0	0
Interest cost									21	23	22
Amortization of net actuarial (gain) loss									9	7	8
Amortization of prior service credit									0	1	1
Total net periodic benefit cost									30	31	31
Settlement charges									13	10	16
Net actuarial (gain) loss recognized in OCI before tax									87	(9)	20
Amortization of net actuarial loss									(9)	(7)	(8)
Amortization of prior service credit									0	1	1
Settlement charges									(13)	(10)	(16)
Total recognized in other comprehensive income									65	(27)	(5)
Total recognized in net periodic benefit cost and other comprehensive income									108	14	42
Pension Plan [Member]
Service cost									5	5	6
Interest cost									103	109	104
Expected return on assets									(191)	(206)	(223)
Amortization of net actuarial (gain) loss									29	28	31
Amortization of prior service credit									0	0	0
Total net periodic benefit cost									(54)	(64)	(82)
Settlement charges									45	78	89
Net actuarial (gain) loss recognized in OCI before tax									51	223	(120)
Amortization of net actuarial loss									(29)	(28)	(31)
Settlement charges									(45)	(78)	(89)
Total recognized in other comprehensive income									(23)	117	(240)
Total recognized in net periodic benefit cost and other comprehensive income									$ (32)	$ 131	$ (233)