XML 122 R20.htm IDEA: XBRL DOCUMENT

Preferred and Preference Securities (Notes)	12 Months Ended
Preferred and Preference Securities (Notes)	Dec. 31, 2014
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred and Preference Securities	PREFERRED AND PREFERENCE SECURITIES At December 31, 2014, DTE Electric had approximately 6.75 million shares of preferred stock with a par value of $100 per share and 30 million shares of preference stock with a par value of $1 per share authorized, with no shares issued.