Commitments and Contingencies Litigation Settlement (Details) $ in Millions	Jan. 15, 2019 USD ($)
Subsequent Event [Member]
Gain Contingencies [Line Items]
Litigation Settlement Received, Gain	$ 180

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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