Stock-Based Compensation (Components of Stock Based Compensation) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Components of stock based-compensation [Abstract]
Stock-based compensation expense	$ 64	$ 58	$ 61
Tax benefit	13	23	24
Stock-based compensation cost capitalized in Property, plant, and equipment	$ 11	$ 9	$ 10

Represents the compensation cost capitalized during the period arising from liability and equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

No definition available.

Name:	dte_EmployeeServiceSharebasedCompensationAllocationofRecognizedPeriodCostsLiabilityandEquityCapitalizedAmount
Namespace Prefix:	dte_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration