Subsequent Event Proposed Acquisition by Brookfield Infrastructure and GIC (Details) - Scenario, Forecast [Member] - G&W [Member] $ / shares in Units, $ in Billions	Jul. 01, 2019 USD ($) $ / shares
Subsequent Event [Line Items]
Business Acquisition, Share Price \| $ / shares	$ 112.00
Business Acquisition, Total Value including total debt \| $	$ 8.4

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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