Long-Term Debt (Details) - USD ($)
|
3 Months Ended |
12 Months Ended |
Jan. 28, 2017 |
Jul. 30, 2016 |
Apr. 30, 2016 |
Jan. 28, 2017 |
Jan. 30, 2016 |
Jan. 31, 2015 |
| Debt Instrument [Line Items] |
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| Debt Instrument, Repurchased Face Amount |
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$ 60,000,000
|
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| Proceeds from issuance of long-term debt |
|
|
|
$ 2,188,000,000
|
$ 0
|
$ 893,000,000
|
| Loss on extinguishment of debt |
|
$ 34,000,000
|
$ (4,000,000)
|
30,000,000
|
10,000,000
|
$ 34,000,000
|
| Extinguishment of Debt, Amount |
|
|
|
|
494,000,000
|
|
| 8.125% Senior Notes Due 2019 |
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| Debt Instrument [Line Items] |
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| Unsecured Long-term Debt, Noncurrent |
$ 400,000,000
|
|
|
$ 400,000,000
|
$ 400,000,000
|
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| Debt instrument, stated interest rate (percent) |
8.125%
|
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|
8.125%
|
8.125%
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| Senior Secured Notes Five Point Eight Seven Five Percent Due2023 [Member] |
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| Debt Instrument [Line Items] |
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| Debt instrument, stated interest rate (percent) |
5.875%
|
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|
5.875%
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| Secured Long-term Debt, Noncurrent |
|
500,000,000
|
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| 2016 Term Loan Facility [Member] |
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| Debt Instrument [Line Items] |
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| 2013 Term Loan Facility, basis spread on variable interest rate |
|
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4.25%
|
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| 2016 Term Loan Facility [Member] |
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| Debt Instrument [Line Items] |
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| 2013 Term Loan Facility, face amount |
|
$ 2,000,000,000
|
|
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| 2013 Term Loan Facility, term |
|
7 years
|
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| 2013 Term Loan Facility, required quarterly principal payment |
$ 10,550,000.00
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