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Financial Information for Reportable Segments (Parenthetical) (Detail) (Unallocated, USD $)
In Millions, unless otherwise specified |
3 Months Ended |
|---|---|
|
Jun. 30, 2012
|
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Unallocated
|
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| Segment Reporting Information [Line Items] | |
| Pretax gain related to confidential resolution of a vendor dispute | $ 70 |