Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2016

Public Utilities General Disclosures [Table Text Block]

For each of the following years, the following total increases/(decreases) were included in ComEd’s, BGE’s, Pepco's, DPL's and ACE's electric transmission formula rate filings:



	ComEd									BGE
Annual Transmission Filings	2016			2015			2014			2016			2015			2014
Initial revenue requirement increase	$	90		$	68		$	36		$	12		$	—		$	9
Annual reconciliation increase (decrease)	4			18			(14		)	3			(3		)	5
Dedicated facilities increase ^(a)	—			—			—			13			13			3
Total revenue requirement increase	$	94		$	86		$	22		$	28		$	10		$	17

Allowed return on rate base ^(c)	8.47		%	8.61		%	8.62		%	8.09		%	8.46		%	8.53		%
Allowed ROE ^(d)	11.50		%	11.50		%	11.50		%	10.50		%	11.30		%	11.30		%

Effective date of rates	June 2016			June 2015			June 2014			June 2016			June 2015			June 2014



	Pepco									DPL									ACE
Annual Transmission Filings	2016			2015			2014			2016			2015			2014			2016			2015			2014
Initial revenue requirement increase (decrease)	$	2		$	10		$	(9	)	$	8		$	15		$	4		$	8		$	10		$	4
Annual reconciliation (decrease) increase	(10		)	(3		)	(1		)	(10		)	(1		)	6			(14		)	2			3
MAPP abandonment recovery (decrease) increase ^(b)	(15		)	(2		)	17			(12		)	(2		)	15			—			—			—
Total revenue requirement (decrease) increase	$	(23	)	$	5		$	7		$	(14	)	$	12		$	25		$	(6	)	$	12		$	7

Allowed return on rate base ^(c)	7.88		%	8.36		%	8.60		%	7.21		%	7.80		%	8.05		%	7.83		%	8.51		%	8.66		%
Allowed ROE^(d)	10.50		%	11.30		%	11.30		%	10.50		%	11.30		%	11.30		%	10.50		%	11.30		%	11.30		%

Effective date of rates^(e)	June 2016			June 2015			June 2014			June 2016			June 2015			June 2014			June 2016			June 2015			June 2014

____________

(a) BGE's transmission revenues include a FERC approved dedicated facilities charge to recover the costs of providing transmission service to specifically designated load by BGE.

For each of the following years, the ICC approved the following total increases/(decreases) in ComEd's electric distributions formula rate filings:



Annual Electric Distribution Filings	2016				2015				2014
ComEd's requested total revenue requirement increase (decrease)	$	138			$	(50	)		$	269

Final ICC Order
Initial revenue requirement increase	$	134			$	85			$	160
Annual reconciliation (decrease) increase	(7		)		(152		)		72
Total revenue requirement increase (decrease)	$	127		^(a)	$	(67	)		$	232

Allowed Return on Rate Base:
Initial revenue requirement	6.71		%		7.05		%		7.06		%
Annual reconciliation	6.69		%		7.02		%		7.04		%
Allowed ROE:
Initial revenue requirement	8.64		%		9.14		%		9.25		%
Annual reconciliation	8.59		%	^(b)	9.09		%	^(b)	9.20		%	^(b)

Effective date of rates	January 2017				January 2016				January 2015

__________________

(a) On December 20, 2016, the ICC granted ComEd's and other parties' joint application for rehearing on the impact that changing ComEd’s OSHA recordable rate for 2014 and 2015 has on the revenue requirement approved in this order. ComEd has proposed that the 2016 total electric distribution revenue requirement be reduced by $18 million which would be refunded to customers in 2017.

(b) Includes a reduction of 5 basis points for a reliability performance metric penalty.



	ComEd									BGE
Annual Transmission Filings	2016			2015			2014			2016			2015			2014
Initial revenue requirement increase	$	90		$	68		$	36		$	12		$	—		$	9
Annual reconciliation increase (decrease)	4			18			(14		)	3			(3		)	5
Dedicated facilities increase ^(a)	—			—			—			13			13			3
Total revenue requirement increase	$	94		$	86		$	22		$	28		$	10		$	17

Allowed return on rate base ^(c)	8.47		%	8.61		%	8.62		%	8.09		%	8.46		%	8.53		%
Allowed ROE ^(d)	11.50		%	11.50		%	11.50		%	10.50		%	11.30		%	11.30		%

Effective date of rates	June 2016			June 2015			June 2014			June 2016			June 2015			June 2014

Regulatory Construction Commitment

will work with PJM to continue to evaluate the scope and timing of any required construction projects. The Utility Registrant's estimated commitments are as follows:



	Total		2017		2018		2019		2020		2021
ComEd	$	97	$	64	$	28	$	5	$	—	$	—
PECO	34		14		10		7		2		1
BGE	226		113		55		44		14		—
Pepco	104		6		39		40		19		—
DPL	63		47		16		—		—		—
ACE	93		36		39		18		—		—

Schedule of Regulatory Assets



									Successor
December 31, 2016	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
Regulatory assets
Pension and other postretirement benefits	$	4,162	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Deferred income taxes	2,016		75		1,583		98		260		171		38		51
AMI programs	701		164		49		230		258		174		84		—
Under-recovered distribution service costs	188		188		—		—		—		—		—		—
Debt costs	124		42		1		7		81		17		9		6
Fair value of long-term debt	812		—		—		—		671		—		—		—
Fair value of PHI's unamortized energy contracts	1,085		—		—		—		1,085		—		—		—
Severance	5		—		—		5		—		—		—		—
Asset retirement obligations	111		76		23		12		—		—		—		—
MGP remediation costs	305		278		26		1		—		—		—		—
Under-recovered uncollectible accounts	56		56		—		—		—		—		—		—
Renewable energy	260		258		—		—		2		—		—		2
Energy and transmission programs	89		23		—		38		28		6		5		17
Deferred storm costs	36		—		—		1		35		12		5		18
Electric generation-related regulatory asset	10		—		—		10		—		—		—		—
Rate stabilization deferral	7		—		—		7		—		—		—		—
Energy efficiency and demand response programs	621		—		1		285		335		250		85		—
Merger integration costs	25		—		—		10		15		11		4		—
Under-recovered revenue decoupling	27		—		—		3		24		21		3		—
COPCO acquisition adjustment	8		—		—		—		8		—		8		—
Recoverable workers compensation and long-term disability costs	34		—		—		—		34		34		—		—
Vacation accrual	31		—		7		—		24		—		14		10
Securitized stranded costs	138		—		—		—		138		—		—		138
CAP arrearage	11		—		11		—		—		—		—		—
Removal costs	477		—		—		—		477		134		88		255
Other	49		7		9		5		29		22		5		4
Total regulatory assets	11,388		1,167		1,710		712		3,504		852		348		501
Less: current portion	1,342		190		29		208		653		162		59		96
Total noncurrent regulatory assets	$	10,046	$	977	$	1,681	$	504	$	2,851	$	690	$	289	$	405



									Predecessor
December 31, 2015	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
Regulatory assets
Pension and other postretirement benefits	$	3,156	$	—	$	—	$	—	$	910	$	—	$	—	$	—
Deferred income taxes	1,616		64		1,473		79		214		137		36		41
AMI programs	399		140		63		196		267		180		87		—
Under-recovered distribution service costs	189		189		—		—		—		—		—		—
Debt costs	47		46		1		8		36		19		10		7
Fair value of long-term debt	162		—		—		—		—		—		—		—
Severance	9		—		—		9		—		—		—		—
Asset retirement obligations	108		67		22		19		1		1		—		—
MGP remediation costs	286		255		30		1		—		—		—		—
Under-recovered uncollectible accounts	52		52		—		—		—		—		—		—
Renewable energy	247		247		—		—		6		—		1		5
Energy and transmission programs	84		43		1		40		33		9		11		13
Deferred storm costs	2		—		—		2		43		19		6		18
Electric generation-related regulatory asset	20		—		—		20		—		—		—		—
Rate stabilization deferral	87		—		—		87		—		—		—		—
Energy efficiency and demand response programs	279		—		1		278		401		289		111		1
Merger integration costs	6		—		—		6		—		—		—		—
Conservation voltage reduction	3		—		—		3		—		—		—		—
Under-recovered revenue decoupling	30		—		—		30		14		10		4		—
COPCO acquisition adjustment	—		—		—		—		—		—		13		—
Workers compensation and long-term disability costs	—		—		—		—		31		31		—		—
Vacation accrual	6		—		6		—		23		—		14		9
Securitized stranded costs	—		—		—		—		202		—		—		202
CAP arrearage	7		—		7		—		—		—		—		—
Removal costs	—		—		—		—		369		92		69		208
Other	29		10		13		3		32		14		9		8
Total regulatory assets	6,824		1,113		1,617		781		2,582		801		371		512
Less: current portion	759		218		34		267		305		140		72		98
Total noncurrent regulatory assets	$	6,065	$	895	$	1,583	$	514	$	2,277	$	661	$	299	$	414

Schedule of Regulatory Liabilities



									Predecessor
December 31, 2015	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
Regulatory liabilities
Other postretirement benefits	$	94	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Nuclear decommissioning	2,577		2,172		405		—		—		—		—		—
Removal costs	1,527		1,332		—		195		150		21		129		—
Energy efficiency and demand response programs	92		52		40		—		1		—		—		1
DLC program costs	9		—		9		—		—		—		—		—
Electric distribution tax repairs	95		—		95		—		—		—		—		—
Gas distribution tax repairs	28		—		28		—		—		—		—		—
Energy and transmission programs	131		53		60		18		27		16		19		8
Over-recovered revenue decoupling	1		—		—		1		—		—		—		—
Other	16		5		2		8		35		7		12		16
Total regulatory liabilities	4,570		3,614		639		222		213		44		160		25
Less: current portion	369		155		112		38		66		15		49		18
Total noncurrent regulatory liabilities	$	4,201	$	3,459	$	527	$	184	$	147	$	29	$	111	$	7



									Successor
December 31, 2016	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
Regulatory liabilities
Other postretirement benefits	$	47	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Nuclear decommissioning	2,607		2,169		438		—		—		—		—		—
Removal costs	1,601		1,324		—		141		136		18		118		—
Deferred rent	39		—		—		—		39		—		—		—
Energy efficiency and demand response programs	185		141		41		—		3		3		—		—
DLC program costs	8		—		8		—		—		—		—		—
Electric distribution tax repairs	76		—		76		—		—		—		—		—
Gas distribution tax repairs	20		—		20		—		—		—		—		—
Energy and transmission programs	134		60		56		—		18		8		5		5
Other	72		4		5		19		41		2		17		20
Total regulatory liabilities	4,789		3,698		644		160		237		31		140		25
Less: current portion	602		329		127		50		79		11		43		25
Total noncurrent regulatory liabilities	$	4,187	$	3,369	$	517	$	110	$	158	$	20	$	97	$	—



									Predecessor
December 31, 2015	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
Regulatory assets
Pension and other postretirement benefits	$	3,156	$	—	$	—	$	—	$	910	$	—	$	—	$	—
Deferred income taxes	1,616		64		1,473		79		214		137		36		41
AMI programs	399		140		63		196		267		180		87		—
Under-recovered distribution service costs	189		189		—		—		—		—		—		—
Debt costs	47		46		1		8		36		19		10		7
Fair value of long-term debt	162		—		—		—		—		—		—		—
Severance	9		—		—		9		—		—		—		—
Asset retirement obligations	108		67		22		19		1		1		—		—
MGP remediation costs	286		255		30		1		—		—		—		—
Under-recovered uncollectible accounts	52		52		—		—		—		—		—		—
Renewable energy	247		247		—		—		6		—		1		5
Energy and transmission programs	84		43		1		40		33		9		11		13
Deferred storm costs	2		—		—		2		43		19		6		18
Electric generation-related regulatory asset	20		—		—		20		—		—		—		—
Rate stabilization deferral	87		—		—		87		—		—		—		—
Energy efficiency and demand response programs	279		—		1		278		401		289		111		1
Merger integration costs	6		—		—		6		—		—		—		—
Conservation voltage reduction	3		—		—		3		—		—		—		—
Under-recovered revenue decoupling	30		—		—		30		14		10		4		—
COPCO acquisition adjustment	—		—		—		—		—		—		13		—
Workers compensation and long-term disability costs	—		—		—		—		31		31		—		—
Vacation accrual	6		—		6		—		23		—		14		9
Securitized stranded costs	—		—		—		—		202		—		—		202
CAP arrearage	7		—		7		—		—		—		—		—
Removal costs	—		—		—		—		369		92		69		208
Other	29		10		13		3		32		14		9		8
Total regulatory assets	6,824		1,113		1,617		781		2,582		801		371		512
Less: current portion	759		218		34		267		305		140		72		98
Total noncurrent regulatory assets	$	6,065	$	895	$	1,583	$	514	$	2,277	$	661	$	299	$	414

Purchase Of Receivables

December 31, 2016 and December 31, 2015.



													Successor
As of December 31, 2016	Exelon			ComEd			PECO			BGE			PHI			Pepco			DPL			ACE
Purchased receivables ^(c)	$	313		$	87		$	72		$	59		$	95		$	63		$	10		$	22
Allowance for uncollectible accounts ^(a)	(37		)	(14		)	(6		)	(4		)	(13		)	(7		)	(2		)	(4		)
Purchased receivables, net	$	276		$	73		$	66		$	55		$	82		$	56		$	8		$	18

													Predecessor
As of December 31, 2015	Exelon			ComEd			PECO			BGE			PHI			Pepco			DPL			ACE
Purchased receivables ^(b)(c)	$	229		$	103		$	67		$	59		$	100		$	70		$	11		$	19
Allowance for uncollectible accounts ^(a)	(31		)	(16		)	(7		)	(8		)	(6		)	(4		)	—			(2		)
Purchased receivables, net	$	198		$	87		$	60		$	51		$	94		$	66		$	11		$	17

_________________________