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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Parenthetical) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Apr. 28, 2012
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Apr. 30, 2011
|
|
| Consolidated Statements of Comprehensive Income/(Loss) [Abstract] | ||
| Tax expense/(benefit) on unrealized gain/(loss) on investments | $ 16 | $ 12 |
| Tax expense/(benefit) on net unamortized gain/(loss) and prior service credit/(cost) | $ 21 | $ 12 |