Accounting Policies (Details) - Accounting Standards Update 2016-02 [Member] $ in Millions	Mar. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease Right Of Use Asset Expected	$ 100
Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease Liability Expected	$ 100

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration