Long-Term Debt 2013 Term Loan Facility (Details) - USD ($) $ in Millions |
Jul. 30, 2016 |
Apr. 30, 2016 |
Jan. 30, 2016 |
Aug. 01, 2015 |
|---|---|---|---|---|
| Debt Instrument [Line Items] | ||||
| Debt Instrument, Repurchased Face Amount | $ 60 | |||
| 2013 Term Loan Facility [Member] | ||||
| Debt Instrument [Line Items] | ||||
| Debt Instrument, Repurchased Face Amount | $ 2,250 | |||
| Unsecured Long-term Debt, Noncurrent | $ 0 | $ 2,194 | $ 2,205 |