Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	DTE Electric	DTE Electric Common Stock	DTE Electric Additional Paid-in Capital	DTE Electric Retained Earnings	DTE Electric Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2016		179,433,000					138,632,000
Beginning balance at Dec. 31, 2016	$ 9,499	$ 4,030	$ 5,114	$ (133)	$ 488
Beginning balance at Dec. 31, 2016						$ 5,995	$ 1,386	$ 2,820	$ 1,787	$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	1,112		1,134		(22)
Net Income	1,134					601			601
Dividends declared on common stock	(602)		(602)			(432)			(432)
Repurchase of common stock (in shares)		(524,000)
Repurchase of common stock	(51)	$ (51)
Other comprehensive income (loss), net of tax	13			13		1				1
Stock-based compensation, net contributions from (distributions to) noncontrolling interests, and other (in shares)		478,000
Stock-based compensation, net contributions from (distributions to) noncontrolling interests, and other	19	$ 10	(3)		12
Capital contribution by parent company						100		100
Ending balance (in shares) at Dec. 31, 2017		179,387,000					138,632,000
Ending balance at Dec. 31, 2017	9,990	$ 3,989	5,643	(120)	478
Ending balance at Dec. 31, 2017						6,265	$ 1,386	2,920	1,956	3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	1,118		1,120		(2)
Net Income	1,120					664			664
Dividends declared on common stock	(653)		(653)			(461)			(461)
Issuance of common stock (in shares)		255,000
Issuance of common stock	26	$ 26
Contribution of common stock to pension plan (in shares)		1,751,000
Contribution of common stock to pension plan	175	$ 175
Other comprehensive income (loss), net of tax	5			5		0
Stock-based compensation, net contributions from (distributions to) noncontrolling interests, and other (in shares)		532,000
Stock-based compensation, net contributions from (distributions to) noncontrolling interests, and other	$ 56	$ 55	(3)		4
Capital contribution by parent company						$ 325		325
Ending balance (in shares) at Dec. 31, 2018	181,925,281	181,925,000				138,632,324	138,632,000
Ending balance at Dec. 31, 2018	$ 10,717	$ 4,245	6,112	(120)	480
Ending balance at Dec. 31, 2018	10,237					$ 6,793	$ 1,386	3,245	2,162	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	1,172		1,169		3
Net Income	1,169					716			716
Dividends declared on common stock	(714)		(714)			(494)			(494)
Issuance of common stock (in shares)		8,634,000
Issuance of common stock	1,014	$ 1,014
Premium on equity units	(150)	(150)
Issuance costs of equity units	(30)	$ (30)
Contribution of common stock to pension plan (in shares)		815,000
Contribution of common stock to pension plan	100	$ 100
Other comprehensive income (loss), net of tax	(3)			(3)		0
Purchase of noncontrolling interests, principally SGG	(300)	$ (3)			(297)
Stock-based compensation, net contributions from (distributions to) noncontrolling interests, and other (in shares)		835,000
Stock-based compensation, net contributions from (distributions to) noncontrolling interests, and other	$ 30	$ 57	(5)		(22)
Capital contribution by parent company						$ 180		180
Ending balance (in shares) at Dec. 31, 2019	192,208,533	192,209,000				138,632,324	138,632,000
Ending balance at Dec. 31, 2019	$ 11,836	$ 5,233	$ 6,587	$ (148)	$ 164
Ending balance at Dec. 31, 2019	$ 11,672					$ 7,195	$ 1,386	$ 3,425	$ 2,384	$ 0