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Share-based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Feb. 01, 2020 | Feb. 02, 2019 | Feb. 03, 2018
Options, restricted and unrestricted shares authorized | 160 |  |
Options and shares available for grant | 5 |  |
Cash received from stock options exercised | $ 1 | $ 1 | $ 38
Tax Benefit associated with share based compensation | $ 18 | 20 | 23
Stock Options [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |
Total intrinsic value of options exercised | $ 3 | 2 | 44
Total fair value at grant date of option awards vested | 9 | $ 9 | $ 10
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount | $ 8 |  |
Weighted average fair value of stock options granted | $ 6.05 | $ 6.76 | $ 5.96
Cash received from stock options exercised | $ 1 |  | $ 38
Total unrecognized compensation cost, weighted-average period of recognition, years | 1 year 9 months 18 days |  |
Tax benefits realized from tax deductions | $ 1 | $ 1 | 16
Restricted Stock [Member] |  |  |
Total intrinsic value of restricted stock vested | 39 | 44 | 86
Total fair value at grant date of awards vested | 104 | 86 | 87
Total unrecognized compensation cost, net of estimated forfeitures | $ 103 |  |
Total unrecognized compensation cost, weighted-average period of recognition, years | 1 year 10 months 24 days |  |
Tax benefits realized from tax deductions | $ 10 | $ 10 | $ 32
Minimum [Member] | Stock Options [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Minimum [Member] | Restricted Stock [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Maximum [Member] | Stock Options [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 5 years |  |
Maximum [Member] | Restricted Stock [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 5 years |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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