Annual report pursuant to Section 13 and 15(d)

Postretirement Health Care and Life Insurance Benefits (Net Periodic Benefit Cost) (Details)

v3.3.1.900
Postretirement Health Care and Life Insurance Benefits (Net Periodic Benefit Cost) (Details) - Other Postretirement Benefit Plan [Member] - USD ($)
$ in Millions
12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Service cost $ 0 $ 0 $ 0
Interest cost 8 10 10
Amortization of net actuarial (gain) loss 0 (5) (3)
Amortization of prior service credit 0 0 0
Total net periodic benefit cost 8 5 7
Net actuarial (gain) loss recognized in OCI before tax (22) 30 (15)
Amortization of net actuarial loss 0 5 3
Amortization of prior service credit 0 0 0
Total recognized in other comprehensive income (22) 35 (12)
Total recognized in net periodic benefit cost and other comprehensive income $ (14) $ 40 $ (5)