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Supplemental Statement of Cash Flows Information 1 (Details) (Notional Pooling Arrangement [Member], USD $)
In Millions, unless otherwise specified |
9 Months Ended | |||||
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Dec. 31, 2014
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Dec. 31, 2013
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Notional Pooling Arrangement [Member]
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| Activity under cash pooling arrangement | ||||||
| Total borrowings outstanding at beginning of period | $ 139 | [1] | $ 136 | [1] | ||
| Borrowings | 4,226 | 2,577 | ||||
| Repayments | (4,145) | (2,603) | ||||
| Foreign currency exchange effect | (82) | 28 | ||||
| Total borrowings outstanding at end of period | $ 138 | [1] | $ 138 | [1] | ||
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