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v3.19.3

Significant Accounting Policies Newly Adopted and Pending Accounting Pronouncements (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Mar. 31, 2019
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Operating Lease, Right-of-Use Asset | $ 180 | $ 137

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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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