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Receivables, Net (Tables) | 12 Months Ended
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Mar. 31, 2015
Receivables, Net, Current [Abstract] |
Schedule of Accounts Receivable |
| March 31,
(In millions) | 2015 |  | 2014
Customer accounts | $ | 13,117 |  |  | $ | 12,169 |
Other | 2,965 |  |  | 1,740 |
Total | 16,082 |  |  | 13,909 |
Allowances | (168 | ) |  | (129 | )
Net | $ | 15,914 |  |  | $ | 13,780 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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