Asset Retirement Obligations

6 Months Ended

Jun. 30, 2015

Asset Retirement Obligation Disclosure [Abstract]

ASSET RETIREMENT OBLIGATIONS

A reconciliation of the ARO for the six months ended June 30, 2015 follows:



	DTE Energy		DTE Electric
	(In millions)
Asset retirement obligations at December 31, 2014	$	1,962	$	1,796
Accretion	59		54
Revision in estimated cash flows	136		136
Asset retirement obligations at June 30, 2015	$	2,157	$	1,986

The Revision in estimated cash flows was principally attributed to the impact of the Coal Combustion Residual Rule on our coal ash storage facility AROs. Refer to Note 12 to the Consolidated Financial Statements, "Commitments and Contingencies", for discussion of the implications of the Coal Combustion Residual Rule.