Annual report pursuant to Section 13 and 15(d)

Retirement Benefits Plans (Estimated Future Benefit Payments) (Details)

v3.6.0.2
Retirement Benefits Plans (Estimated Future Benefit Payments) (Details)
$ in Millions
Jan. 28, 2017
USD ($)
Pension Plan [Member]  
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]  
2016 $ 203
2017 205
2018 210
2019 215
2020 221
2021-2025 1,160
Supplemental Pension Plans [Member]  
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]  
2016 26
2017 18
2018 16
2019 16
2020 13
2021-2025 $ 58