Pension And Postretirement Benefits (Schedule of Estimated Future Benefit Payments) (Details) $ in Millions	Aug. 02, 2020 USD ($)
Pension Plan, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 181
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	164
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	156
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	148
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	143
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	663
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	24
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	23
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	21
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	20
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	18
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 74

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

+ References

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