Long-Term Debt (Details Textuals) - USD ($) $ / shares in Units, shares in Millions		1 Months Ended		12 Months Ended
	Oct. 05, 2016	Oct. 31, 2016	Sep. 30, 2016	Dec. 31, 2016	Aug. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Amount				$ 2,680,000,000
Junior subordinated debentures				756,000,000		$ 465,000,000
Equity units, percentage interest in attached debt instrument		0.005%
5.25% junior subordinated debentures due 2062 | Junior subordinated debentures
Debt Instrument [Line Items]
Junior subordinated debentures				$ 200,000,000
Interest rate				5.25%
May 5.375% junior subordinated debentures maturing in 2076 | Junior subordinated debentures
Debt Instrument [Line Items]
Junior subordinated debentures				$ 300,000,000
Interest rate				5.375%
6% junior subordinated debentures maturing 2076 | Junior subordinated debentures
Debt Instrument [Line Items]
Junior subordinated debentures				$ 280,000,000
Interest rate				6.00%
October series D 1.50% senior notes maturing 2019 | Other long-term debt
Debt Instrument [Line Items]
Interest Rate		1.50%
Amount		$ 400,000,000
October series C 1.5% RSNs maturing 2024 | Other long-term debt
Debt Instrument [Line Items]
Interest Rate	1.50%	1.50%
Amount	$ 675,000,000	$ 675,000,000		$ 675,000,000
October series E 2.85% senior notes maturing 2026 | Other long-term debt
Debt Instrument [Line Items]
Interest Rate		2.85%
Amount		$ 600,000,000
DTE Energy | December 8.75% senior secured term loan maturing 2022 | Secured debt
Debt Instrument [Line Items]
Interest Rate				8.75%
DTE Energy | May 5.375% junior subordinated debentures maturing in 2076 | Junior subordinated debentures
Debt Instrument [Line Items]
Interest Rate				5.375%
Amount				$ 300,000,000
DTE Energy | October series D 1.50% senior notes maturing 2019 | Other long-term debt
Debt Instrument [Line Items]
Interest Rate				1.50%
Amount				$ 400,000,000
DTE Energy | October series E 2.85% senior notes maturing 2026 | Other long-term debt
Debt Instrument [Line Items]
Interest Rate				2.85%
Amount				$ 600,000,000
DTE Electric | 5.5% tax exempt revenue bonds | Tax-exempt revenue bonds
Debt Instrument [Line Items]
Debt instrument, repurchased face amount					$ 59,000,000
Interest Rate					5.50%
DTE Electric | 1.45% tax exempt revenue bonds due 2029 | Tax-exempt revenue bonds
Debt Instrument [Line Items]
Interest Rate			1.45%
Debt instrument term			5 years
Amount			$ 59,000,000
DTE Electric | 1.45% tax exempt revenue bonds due 2030 | Tax-exempt revenue bonds
Debt Instrument [Line Items]
Interest Rate			1.45%
Debt instrument term			5 years
Amount			$ 82,000,000
London Interbank offered rate (LIBOR) | DTE Energy | December 8.75% senior secured term loan maturing 2022 | Secured debt
Debt Instrument [Line Items]
Debt instrument, variable rate, floor				1.00%
Debt instrument, basis spread on variable rate				7.75%
Unsuccessful remarketing | October series C 1.5% RSNs maturing 2024 | Other long-term debt
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage		100.00%
Equity units subject to mandatory redemption
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, contract adjustment rate	5.00%	5.00%
Forward contract indexed to issuer's equity, forward rate per share		$ 50
Financial instruments subject to mandatory redemption, settlement terms, maximum number of shares				9.0
Financial instruments subject to mandatory redemption, contract adjustment rate, annual amount				$ 2.50
Financial instruments subject to mandatory redemption, settlement terms, share value, amount				$ 98,000,000
Equity units subject to mandatory redemption | Minimum
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, settlement terms, number of shares				5.8
Equity units subject to mandatory redemption | Maximum
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, settlement terms, number of shares				7.3
Equal to or greater than $116.31, 0.4299 shares of common stock | Equity units subject to mandatory redemption
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, anti-dilution provision, conversion ratio		0.4299
Equal to or greater than $116.31, 0.4299 shares of common stock | Equity units subject to mandatory redemption | Minimum
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, anti-dilution provision, stock price threshold		$ 116.31
Less than $116.31, but greater than $93.05, number of shares of common stock equal to $50 divided by the AMV rounded to the nearest 1/10,000th of a share | Equity units subject to mandatory redemption | Minimum
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, anti-dilution provision, stock price threshold		93.05
Less than $116.31, but greater than $93.05, number of shares of common stock equal to $50 divided by the AMV rounded to the nearest 1/10,000th of a share | Equity units subject to mandatory redemption | Maximum
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, anti-dilution provision, stock price threshold		$ 116.31
Less than or equal to $93.05, 0.5373 shares of common stock | Equity units subject to mandatory redemption
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, anti-dilution provision, conversion ratio		0.5373
Less than or equal to $93.05, 0.5373 shares of common stock | Equity units subject to mandatory redemption | Maximum
Debt Instrument [Line Items]
Financial instruments subject to mandatory redemption, anti-dilution provision, stock price threshold		$ 93.05