Related Party Transactions (DTE Electric Transactions with Affiliated Companies) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Dividends declared	$ 710,000,000	$ 752,000,000	$ 796,000,000
Dividends paid	$ 685,000,000	$ 791,000,000	760,000,000
Affiliated entity
Related Party Transaction [Line Items]
Weighted average interest rate	4.40%	0.20%
DTE Electric
Related Party Transaction [Line Items]
Dividends declared	$ 763,000,000	$ 588,000,000	539,000,000
Dividends paid	763,000,000	588,000,000	539,000,000
DTE Electric | Energy sales
Related Party Transaction [Line Items]
Revenues and Other Income	8,000,000	9,000,000	8,000,000
DTE Electric | Other services and interest
Related Party Transaction [Line Items]
Other services and interest	0	2,000,000	2,000,000
Costs	1,000,000	0	1,000,000
DTE Electric | Shared capital assets
Related Party Transaction [Line Items]
Revenues and Other Income	57,000,000	49,000,000	47,000,000
DTE Electric | Fuel and purchased power
Related Party Transaction [Line Items]
Costs	58,000,000	13,000,000	16,000,000
DTE Electric | Corporate expenses
Related Party Transaction [Line Items]
Costs	379,000,000	391,000,000	367,000,000
DTE Electric | DTE Energy
Related Party Transaction [Line Items]
Dividends declared	763,000,000	588,000,000	539,000,000
Dividends paid	763,000,000	588,000,000	539,000,000
Capital contribution from DTE Energy	600,000,000	555,000,000	636,000,000
DTE Electric | DTE Energy Foundation
Related Party Transaction [Line Items]
Charitable contributions to foundation	$ 0	$ 2,000,000	$ 20,000,000