Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Estimated Pension Plan Benefit Payments) (Details)

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Retirement Plans (Estimated Pension Plan Benefit Payments) (Details) - Pension Plan [Member]
$ in Millions
Jan. 28, 2017
USD ($)
2017 $ 383
2018 309
2019 299
2020 286
2021 246
2022-2026 $ 1,113