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Preferred and Preference Securities
12 Months Ended
Dec. 31, 2017
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]  
Preferred and Preference Securities
PREFERRED AND PREFERENCE SECURITIES
As of December 31, 2017, the amount of authorized and unissued stock is as follows:
Company
 
Type of Stock
 
Par Value
 
Shares Authorized
DTE Energy
 
Preferred
 
$

 
5,000,000

DTE Electric
 
Preferred
 
$
100

 
6,747,484

DTE Electric
 
Preference
 
$
1

 
30,000,000

DTE Gas
 
Preferred
 
$
1

 
7,000,000

DTE Gas
 
Preference
 
$
1

 
4,000,000