Related Party Transactions (Details) - NEXUS - Equity Method Investee	6 Months Ended
	Jun. 30, 2020
DTE Gas | Capacity Lease Agreement
Related Party Transaction [Line Items]
Term of related party agreeement	15 years
DTE Gas | Service Agreement
Related Party Transaction [Line Items]
Term of related party agreeement	15 years
DTE Electric | Service Agreement
Related Party Transaction [Line Items]
Term of related party agreeement	20 years