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Financing (Schedule of Company Debt) (Details) - USD ($) $ in Millions | Feb. 03, 2018 | Jan. 28, 2017 | Dec. 07, 2015
--- | --- | --- | ---
Unamortized debt issue costs | $ (25) | $ (29) |
Unamortized debt discount | (13) | (16) |
2.875% Senior notes due 2023 [Member] |  |  |
Debt instrument, principal outstanding | $ 750 | 750 |
Debt instrument interest rate, stated percentage | 2.875% |  |
3.875% Senior notes due 2022 [Member] |  |  |
Debt instrument, principal outstanding | $ 550 | 550 |
Debt instrument interest rate, stated percentage | 3.875% |  |
4.5% senior notes due 2034[Member] |  |  |
Debt instrument, principal outstanding | $ 550 | 550 |
Debt instrument interest rate, stated percentage | 4.50% |  |
3.45% senior notes due 2021 [Member] |  |  |
Debt instrument, principal outstanding | $ 500 | 500 |
Debt instrument interest rate, stated percentage | 3.45% |  | 3.45%
3.625% senior notes due 2024 [Member] |  |  |
Debt instrument, principal outstanding | $ 500 | 500 |
Debt instrument interest rate, stated percentage | 3.625% |  |
Six Point Three Seven Five Percent Senior Notes Due Two Thousand Thirty Seven [Member] |  |  |
Debt instrument, principal outstanding | $ 269 | 500 |
Debt instrument interest rate, stated percentage | 6.375% |  |
4.375% Senior notes due 2023 [Member] |  |  |
Debt instrument, principal outstanding | $ 400 | 400 |
Debt instrument interest rate, stated percentage | 4.375% |  |
6.9% Senior Debentures Due 2029 [Member] |  |  |
Debt instrument, principal outstanding | $ 397 | 400 |
Debt instrument interest rate, stated percentage | 6.90% |  |
Six Point Seven Percent Senior Debentures Due Two Thousand Thirty Four [Member] |  |  |
Debt instrument, principal outstanding | $ 264 | 400 |
Debt instrument interest rate, stated percentage | 6.70% |  |
6.65% Senior Debentures Due 2024 [Member] |  |  |
Debt instrument, principal outstanding | $ 296 | 300 |
Debt instrument interest rate, stated percentage | 6.65% |  |
7.0% Senior Debentures Due 2028 [Member] |  |  |
Debt instrument, principal outstanding | $ 298 | 300 |
Debt instrument interest rate, stated percentage | 7.00% |  |
Six Point Nine Percent Senior Debentures Due Two Thousand Thirty Two [Member] |  |  |
Debt instrument, principal outstanding | $ 31 | 250 |
Debt instrument interest rate, stated percentage | 6.90% |  |
5.125% Senior debentures due 2042 [Member] |  |  |
Debt instrument, principal outstanding | $ 250 | 250 |
Debt instrument interest rate, stated percentage | 5.125% |  |
4.3% Senior notes due 2043 [Member] |  |  |
Debt instrument, principal outstanding | $ 250 | 250 |
Debt instrument interest rate, stated percentage | 4.30% |  |
6.7% Senior Debentures Due 2028 [Member] |  |  |
Debt instrument, principal outstanding | $ 197 | 200 |
Debt instrument interest rate, stated percentage | 6.70% |  |
6.79% Senior Debentures Due 2027 [Member] |  |  |
Debt instrument, principal outstanding | $ 165 | 165 |
Debt instrument interest rate, stated percentage | 6.79% |  |
Seven Point Eight Seven Five Percent Senior Debentures Due Two Thousand Thirty Six [Member] |  |  |
Debt instrument interest rate, stated percentage | 7.875% |  |
Eight Point Seven Five Percent Senior Debentures Due Two Thousand Twenty Nine [Member] |  |  |
Debt instrument, principal outstanding | $ 18 | 61 |
Debt instrument interest rate, stated percentage | 8.75% |  |
8.5% Senior Debentures Due 2019 [Member] |  |  |
Debt instrument, principal outstanding | $ 36 | 36 |
Debt instrument interest rate, stated percentage | 8.50% |  |
10.25% Senior Debentures Due 2021 [Member] |  |  |
Debt instrument, principal outstanding | $ 33 | 33 |
Debt instrument interest rate, stated percentage | 10.25% |  |
9.5% Amortizing Debentures Due 2021 [Member] |  |  |
Debt instrument, principal outstanding | $ 10 | 14 |
Debt instrument interest rate, stated percentage | 9.50% |  |
7.6% Senior Debentures Due 2025 [Member] |  |  |
Debt instrument, principal outstanding | $ 24 | 24 |
Debt instrument interest rate, stated percentage | 7.60% |  |
9.75% Amortizing Debentures Due 2021 [Member] |  |  |
Debt instrument, principal outstanding | $ 6 | 8 |
Debt instrument interest rate, stated percentage | 9.75% |  |
Seven Point Eight Seven Five Percent Senior Debentures Due Two Thousand Thirty [Member] |  |  |
Debt instrument, principal outstanding | $ 12 | 18 |
Debt instrument interest rate, stated percentage | 7.875% |  |
Premium on acquired debt |  |  |
Debt Instrument, Unamortized Premium, Noncurrent | $ 67 | 121 |
Premium on acquired debt | Minimum [Member] |  |  |
Debt instrument interest rate, effective percentage | 5.542% |  |
Premium on acquired debt | Maximum [Member] |  |  |
Debt instrument interest rate, effective percentage | 7.144% |  |
Capital Lease and Other Long-Term Obligations [Member] |  |  |
Debt instrument, principal outstanding | $ 26 | 27 |
Total Of Long Term Debt [Member] |  |  |
Debt instrument, principal outstanding | 5,861 | 6,562 |
7.45% Senior debentures due 2017 [Member] |  |  |
Debt instrument, principal outstanding | $ 0 | 300 |
Debt instrument interest rate, stated percentage | 7.45% |  |
Capital Lease and Current Portion of Other Long-Term Obligations |  |  |
Debt instrument, principal outstanding | $ 22 | 9 |
Short-term Debt [Member] |  |  |
Debt instrument, principal outstanding | $ 22 | $ 309 |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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