Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Net Periodic Benefit Cost Of Supplemental Retirement Plan) (Details)

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Retirement Plans (Net Periodic Benefit Cost Of Supplemental Retirement Plan) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jan. 28, 2017
Oct. 29, 2016
Jul. 30, 2016
Apr. 30, 2016
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Settlement charges $ (17) $ (62) $ (6) $ (13) $ (98) $ 0 $ 0
Settlement charges $ 17 $ 62 $ 6 $ 13 98 0 0
Supplemental Employee Retirement Plan              
Service cost         0 0 0
Interest cost         22 31 33
Amortization of net actuarial (gain) loss         9 10 5
Amortization of prior service credit         0 0 0
Total net periodic benefit cost         31 41 38
Settlement charges         30 0 0
Net actuarial (gain) loss recognized in OCI before tax         26 (70) 170
Prior service cost recognized in OCI before tax         0 0 0
Amortization of net actuarial loss         (9) (10) (5)
Amortization of prior service credit         0 0 0
Settlement charges         (30) 0 0
Total recognized in other comprehensive income         (13) (80) 165
Total recognized in net periodic benefit cost and other comprehensive income         $ 48 $ (39) $ 203