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Stockholders' Equity (Reclassifications Out of Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Aug. 02, 2014
|
Aug. 03, 2013
|
Aug. 02, 2014
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Aug. 03, 2013
|
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||
| Total, net of tax | $ 10 | $ 24 | $ 20 | $ 54 |
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Reclassification out of Accumulated Other Comprehensive Income [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||
| Total reclassifications | 10 | 27 | 20 | 54 |
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Reclassification out of Accumulated Other Comprehensive Income [Member] | Total Amortization Of Retirement Benefit Plans, Net Of Tax [Member]
|
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||
| Total, net of tax | 10 | 27 | 20 | 54 |
|
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||
| Amortization of retirement benefit plans, Actuarial loss/(gain) | 16 | 44 | 33 | 88 |
| Amortization of retirement benefit plans, Prior service cost/(credit) | 3 | 2 | 4 | 3 |
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Reclassification out of Accumulated Other Comprehensive Income [Member] | SG&A [Member]
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||
| Amortization of retirement benefit plans, Prior service cost/(credit) | $ (2) | $ (2) | $ (4) | $ (4) |