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Retirement Plans and Other Benefits (Estimated Future Benefit Payments) (Details)
$ in Millions
Jan. 28, 2017
USD ($)
Pension Benefits [Member]  
Schedule of Postemployment Expected Future Benefit Payments [Line Items]  
2017 $ 70
2018 53
2019 52
2020 51
2021 50
2022 - 2026 229
Postretirement Benefits [Member]  
Schedule of Postemployment Expected Future Benefit Payments [Line Items]  
2017 1
2018 1
2019 1
2020 1
2021 1
2022 - 2026 $ 3