Debt - Components of Long Term Debt (Details) (USD $) | Aug. 02, 2014 | Feb. 01, 2014 | Aug. 03, 2013 |
In Millions, unless otherwise specified |
Debt Instrument [Line Items] | ' | ' | ' |
Unamortized debt discount | ($8) | ($8) | ($8) |
Long-term debt | 2,792 | 2,792 | 2,492 |
Senior Notes | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 5.54% | 5.54% | ' |
Total senior debt | 2,800 | 2,800 | 2,500 |
Senior Notes | Four Point Seven Five Percent Senior Note Due Twenty Twenty Three [Member] [Domain] [Member] | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Debt Instrument, Interest Rate, Stated Percentage | 4.75% | ' | ' |
Senior Notes | Senior Notes Due 2017 | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 6.31% | 6.31% | ' |
Debt Instrument, Interest Rate, Stated Percentage | 6.25% | 6.25% | ' |
Total senior debt | 650 | 650 | 650 |
Senior Notes | Senior Notes Due 2021 | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 4.81% | 4.81% | ' |
Debt Instrument, Interest Rate, Stated Percentage | 4.00% | 4.00% | ' |
Total senior debt | 650 | 650 | 650 |
Senior Notes | Senior Notes Due 2023 | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 3.25% | 3.25% | ' |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% | 3.25% | ' |
Total senior debt | 350 | 350 | 350 |
Senior Notes | Four Point Seven Eight Percent Senior Note Due Twenty Twenty Three [Member] [Domain] | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 4.78% | 4.78% | ' |
Total senior debt | 300 | ' | 0 |
Senior Notes | Senior Notes Due 2029 | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 7.36% | 7.36% | ' |
Debt Instrument, Interest Rate, Stated Percentage | 7.25% | 7.25% | ' |
Total senior debt | 200 | 200 | 200 |
Senior Notes | Senior Notes Due 2033 | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 6.05% | 6.05% | ' |
Debt Instrument, Interest Rate, Stated Percentage | 6.00% | 6.00% | ' |
Total senior debt | 300 | 300 | 300 |
Senior Notes | Senior Notes Due 2037 | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Effective Rate | 6.89% | 6.89% | ' |
Debt Instrument, Interest Rate, Stated Percentage | 6.88% | 6.88% | ' |
Total senior debt | $350 | $350 | $350 |
Four Point Seven Eight Percent Senior Note Due Twenty Twenty Three [Member] [Domain] | Senior Notes Due Twenty Twenty Three [Member] | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' |
Debt Instrument, Interest Rate, Stated Percentage | ' | 4.75% | ' |