|
Retirement Benefit Plans (Defined Contribution Plans) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Nov. 01, 2014
|
Nov. 02, 2013
|
Nov. 01, 2014
|
Nov. 02, 2013
|
|
| Retirement Benefit Plans [Abstract] | ||||
| Defined contribution plan, total expense | $ 12 | $ 12 | $ 38 | $ 38 |