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Debt - Long-Term Debt (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 31, 2013 | Mar. 31, 2011 | Jan. 30, 2016 | Jan. 31, 2015 | Jul. 16, 2013
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | $ 1,525,000,000 | $ 1,502,000,000 |
Financing Lease Obligations |  |  | 178,000,000 | 69,000,000 |
Long-term Debt and Capital Lease Obligations, Including Current Maturities |  |  | 1,734,000,000 | 1,613,000,000 |
Less: current portion |  |  | (395,000,000) | (41,000,000) |
Long-term Debt, Excluding Current Maturities |  |  | 1,339,000,000 | 1,572,000,000 |
Long-term debt, fair value |  |  | 1,543,000,000 | 1,494,000,000 |
Future maturities of long-term debt, including capitalized leases |  |  |  |  |
2017 |  |  | 350,000,000 |  |
2018 |  |  | 0 |  |
2019 |  |  | 517,000,000 |  |
2020 |  |  | 0 |  |
2021 |  |  | 0 |  |
Thereafter |  |  | $ 658,000,000 |  |
2016 and 2021 Notes [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Underwriting discounts |  | $ 6,000,000 |  |  |
Net proceeds from the sale of the Notes |  | 990,000,000 |  |  |
Redemption price, as percentage of principal amount of debt instrument (as a percent) |  |  | 100.00% |  |
Redemption price upon control triggering event, percentage of principal amount (as a percent) |  |  | 101.00% |  |
2016 Notes [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | $ 350,000,000 | 350,000,000 |
Debt instrument issued, principal amount |  | 350,000,000 |  |  |
Interest rate (as a percent) |  |  | 3.75% |  |
Notes due 2018 [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | $ 500,000,000 | 500,000,000 |
Debt instrument issued, principal amount |  |  |  |  | $ 500,000,000
Interest rate (as a percent) |  |  |  |  | 5.00%
Underwriting discounts | $ 5,000,000 |  |  |  |
Net proceeds from the sale of the Notes | $ 495,000,000 |  |  |  |
Redemption price upon control triggering event, percentage of principal amount (as a percent) |  |  | 101.00% |  |
2021 Notes [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | $ 650,000,000 | 650,000,000 |
Debt instrument issued, principal amount |  | $ 650,000,000 |  |  |
Interest rate (as a percent) |  |  | 5.50% |  |
Interest Rate Swap [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | $ 25,000,000 | 1,000,000 |
Capital Lease Obligations [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | 38,000,000 | 52,000,000 |
Debt discounts and issuance costs [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | (7,000,000) | (10,000,000) |
Other debt [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Total long-term debt |  |  | $ 0 | $ 1,000,000 |
Notes due 2018 [Member] |  |  |  |  |
Long-term Debt. |  |  |  |  |
Redemption price, as percentage of principal amount of debt instrument (as a percent) |  |  | 100.00% |  |
Debt Instrument, Treasury Rate Basis Points for Redemption |  |  | 50 |  |

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- Definition Represents the price at which debt instrument may be redeemed, as a percentage of principal amount of debt instrument. + References No definition available. + Details
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- Definition The percentage of the principal amount at which note holders can require the entity to redeem outstanding debt in the event of a change in control triggering event. + References No definition available. + Details
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- Definition This element represents the underwriting discount on the issuance of debt. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 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=6451184&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: 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 Reference 2: 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 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Definition Amount of long-term debt and capital lease obligations including current maturities. + References No definition available. + Details
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- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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