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Retirement Plans (Retirement Expenses) (Details) - USD ($) $ in Millions | 12 Months Ended
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Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016
Total Retirement Expense | $ 43 | $ 44 | $ 77
Pension Plan [Member] |  |  |
Total net periodic benefit cost | (82) | (83) | (54)
Supplemental Employee Retirement Plan |  |  |
Total net periodic benefit cost | 31 | 31 | 41
Defined Contribution Qualified Plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |
Defined Contribution Plan, Cost | 93 | 94 | 88
Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |
Defined Contribution Plan, Cost | $ 1 | $ 2 | $ 2

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- Definition Amount of retirement expenses, including 401(k) defined contribution plan, pension plan, and supplementary retirement plan + References No definition available. + Details
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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