Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

DTE Energy Company

Schedule II — Valuation and Qualifying Accounts

	Year Ending December 31,
	2017			2016			2015
	(In millions)
Allowance for Doubtful Accounts (shown as deduction from Accounts receivable in DTE Energy's Consolidated Statements of Financial Position)
Balance at Beginning of Period	$	41		$	49		$	54
Additions:
Charged to costs and expenses	80			78			93
Charged to other accounts(a)	26			18			14
Deductions(b)	(98		)	(104		)	(112		)
Balance at End of Period	$	49		$	41		$	49

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(a) Collection of accounts previously written off.

(b) Uncollectible accounts written off.

DTE Electric Company

Schedule II — Valuation and Qualifying Accounts

	Year Ending December 31,
	2017			2016			2015
	(In millions)
Allowance for Doubtful Accounts (shown as deduction from Accounts receivable in DTE Electric's Consolidated Statements of Financial Position)
Balance at Beginning of Period	$	25		$	28		$	29
Additions:
Charged to costs and expenses	55			49			51
Charged to other accounts(a)	14			8			6
Deductions(b)	(63		)	(60		)	(58		)
Balance at End of Period	$	31		$	25		$	28

_______________________________________

(a) Collection of accounts previously written off.

(b) Uncollectible accounts written off.