|
Benefit Plans (Net Periodic Benefit Cost) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Nov. 01, 2014
|
Nov. 02, 2013
|
Nov. 01, 2014
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Nov. 02, 2013
|
|
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Pension Plan [Member]
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| Service cost | $ 2 | $ 28 | $ 5 | $ 84 |
| Interest cost | 38 | 36 | 113 | 107 |
| Expected return on assets | (62) | (60) | (185) | (181) |
| Recognition of net actuarial (gain) loss | 6 | 34 | 19 | 105 |
| Amortization of prior service credit | 0 | 0 | 0 | 0 |
| Defined Benefit Plan, Net Periodic Benefit Cost | (16) | 38 | (48) | 115 |
|
Supplemental Employee Retirement Plans, Defined Benefit [Member]
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| Service cost | 0 | 2 | 0 | 5 |
| Interest cost | 8 | 8 | 25 | 24 |
| Recognition of net actuarial (gain) loss | 1 | 4 | 3 | 14 |
| Amortization of prior service credit | 0 | 0 | 0 | 0 |
| Defined Benefit Plan, Net Periodic Benefit Cost | 9 | 14 | 28 | 43 |
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Other Postretirement Benefit Plans, Defined Benefit [Member]
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| Service cost | 0 | 0 | 0 | 0 |
| Interest cost | 3 | 2 | 7 | 7 |
| Recognition of net actuarial (gain) loss | (2) | 0 | (4) | (2) |
| Amortization of prior service credit | 0 | 0 | 0 | 0 |
| Defined Benefit Plan, Net Periodic Benefit Cost | $ 1 | $ 2 | $ 3 | $ 5 |