|
Stockholders' Equity (Reclassifications Out of Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
|
May 02, 2015
|
May 03, 2014
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
|
| Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax |
$ 29 |
|
$ 17 |
|
| Total, net of tax |
17 |
|
10 |
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] |
|
|
|
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
|
| Total reclassifications |
17 |
|
10 |
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Total Amortization Of Retirement Benefit Plans, Net Of Tax [Member] |
|
|
|
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
|
| Total, net of tax |
17 |
|
10 |
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | SG&A [Member] |
|
|
|
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| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
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| Amortization of retirement benefit plans, Prior service cost/(credit) |
(2) |
[1] |
(2) |
[1] |
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Income Tax (Expense)/Benefit [Member] |
|
|
|
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
|
| Amortization of retirement benefit plans, Tax (expense)/benefit |
12 |
|
6 |
|
| Pension [Member] |
|
|
|
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
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| Amortization of retirement benefit plans, Actuarial loss/(gain) |
(29) |
|
(17) |
|
| Amortization of retirement benefit plans, Prior service cost/(credit) |
(2) |
|
(1) |
|
| Pension [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
|
|
|
|
| Other Comprehensive Income (Loss), Net of Tax [Abstract] |
|
|
|
|
| Amortization of retirement benefit plans, Actuarial loss/(gain) |
29 |
[1] |
17 |
[1] |
| Amortization of retirement benefit plans, Prior service cost/(credit) |
$ 2 |
[1] |
$ 1 |
[1] |
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