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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 31, 2021 | Feb. 02, 2020 | Feb. 03, 2019
Reconciliation of gross unrecognized tax benefits: |  |  |
Unrecognized tax benefits balance at beginning of fiscal year | $ 473 | $ 494 | $ 637
Additions based on tax positions related to the current year | 75 | 96 | 91
Additions for tax positions of prior years | 72 | 82 | 100
Reductions for tax positions of prior years | (53) | (147) | (245)
Reductions due to settlements | (22) | (13) | (66)
Reductions due to lapse of statute of limitations | (5) | (39) | (23)
Unrecognized tax benefits balance at end of fiscal year | $ 540 | $ 473 | $ 494

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=120406818&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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