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Hedging Activities (Tables) | 6 Months Ended
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Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of information regarding the fair value of derivatives on a gross basis | Information regarding the fair value of derivatives on a gross basis is as follows:
| Balance Sheet Caption | September 30, 2017 |  | March 31, 2017
| Fair Value of Derivative | U.S. Dollar Notional |  | Fair Value of Derivative | U.S. Dollar Notional
(In millions) | Asset | Liability |  | Asset | Liability
Derivatives designated for hedge accounting |  |  |  |  |  |  |  |
Foreign exchange contracts (current) | Prepaid expenses and other | $ | 13 |  | $ | — |  | $ | 81 |  |  | $ | 17 |  | $ | — |  | $ | 81 |
Foreign exchange contracts (non-current) | Other Noncurrent Assets | 26 |  | — |  | 162 |  |  | 32 |  | — |  | 162 |
Cross currency swaps (current) | Prepaid expenses and other | 2 |  | — |  | 307 |  |  | 17 |  | — |  | 174 |
Cross currency swaps (non-current) | Other Noncurrent Assets/Liabilities | — |  | 132 |  | 3,036 |  |  | 90 |  | — |  | 2,489 |
Total |  | $ | 41 |  | $ | 132 |  |  |  | $ | 156 |  | $ | — |  |
Derivatives not designated for hedge accounting |  |  |  |  |  |  |  |
Foreign exchange contracts (current) | Prepaid expenses and other | $ | 1 |  | $ | — |  | $ | 46 |  |  | $ | 1 |  | $ | — |  | $ | 198 |
Foreign exchange contracts (current) | Other accrued liabilities | — |  | 1 |  | 21 |  |  | — |  | — |  | 37 |
Total |  | $ | 1 |  | $ | 1 |  |  |  | $ | 1 |  | $ | — |  |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13467-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 + Details
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