Segment Information (Tables)

3 Months Ended

6 Months Ended

Jun. 30, 2019

Jun. 30, 2019

Segment Reporting [Abstract]

Analysis and reconciliation of reportable segment information

An analysis and reconciliation of the Registrants’ reportable segment information to the respective information in the consolidated financial statements for the three and six months ended June 30, 2019 and 2018 is as follows:

Three Months Ended June 30, 2019 and 2018

	Generation(a)		ComEd		PECO		BGE		PHI		Other(b)		Intersegment Eliminations			Exelon
Operating revenues(c):
2019
Competitive businesses electric revenues	$	3,718	$	—	$	—	$	—	$	—	$	—	$	(250	)	$	3,468
Competitive businesses natural gas revenues	333		—		—		—		—		—		—			333
Competitive businesses other revenues	159		—		—		—		—		—		(1		)	158
Rate-regulated electric revenues	—		1,351		566		540		1,063		—		(8		)	3,512
Rate-regulated natural gas revenues	—		—		89		109		24		—		(4		)	218
Shared service and other revenues	—		—		—		—		4		484		(488		)	—
Total operating revenues	$	4,210	$	1,351	$	655	$	649	$	1,091	$	484	$	(751	)	$	7,689

	Generation(a)		ComEd		PECO			BGE		PHI		Other(b)			Intersegment Eliminations			Exelon
2018
Competitive businesses electric revenues	$	3,939	$	—	$	—		$	—	$	—	$	—		$	(270	)	$	3,669
Competitive businesses natural gas revenues	489		—		—			—		—		—			—			489
Competitive businesses other revenues	151		—		—			—		—		—			(4		)	147
Rate-regulated electric revenues	—		1,398		560			548		1,045		—			(9		)	3,542
Rate-regulated natural gas revenues	—		—		93			114		28		—			(5		)	230
Shared service and other revenues	—		—		—			—		3		487			(491		)	(1		)
Total operating revenues	$	4,579	$	1,398	$	653		$	662	$	1,076	$	487		$	(779	)	$	8,076
Intersegment revenues(d):
2019	$	252	$	5	$	2		$	6	$	3	$	482		$	(750	)	$	—
2018	273		5		2			6		3		487			(776		)	—
Depreciation and amortization:
2019	$	409	$	257	$	83		$	117	$	188	$	25		$	—		$	1,079
2018	466		231		74			114		180		23			—			1,088
Operating expenses:
2019	$	4,096	$	1,040	$	510		$	569	$	926	$	484		$	(744	)	$	6,881
2018	4,298		1,111		526			578		923		492			(790		)	7,138
Interest expense, net:
2019	$	116	$	89	$	33		$	29	$	67	$	75		$	—		$	409
2018	102		85		32			25		65		64			—			373
Income (loss) before income taxes:
2019	$	202	$	232	$	115		$	56	$	112	$	(73	)	$	—		$	644
2018	209		207		95			64		99		(61		)	—			613
Income Taxes:
2019	$	78	$	46	$	13		$	11	$	6	$	(10	)	$	—		$	144
2018	23		43		(1		)	13		15		(27		)	—			66
Net income (loss):
2019	$	118	$	186	$	102		$	45	$	106	$	(63	)	$	—		$	494
2018	181		164		96			51		84		(34		)	—			542
Capital Expenditures
2019	$	383	$	459	$	225		$	284	$	340	$	11		$	—		$	1,702
2018	670		495		194			210		371		(13		)	—			1,927

__________

(a) Intersegment revenues for Generation in 2019 include revenue from sales to PECO of $35 million, sales to BGE of $57 million, sales to Pepco of $52 million, sales to DPL of $12 million and sales to ACE of $5 million in the Mid-Atlantic region, and sales to ComEd of $89 million in the Midwest region, which eliminate upon consolidation. Intersegment revenues for Generation in 2018 include revenue from sales to PECO of $25 million, sales to BGE of $63 million, sales to Pepco of $46 million, sales to DPL of $30 million and sales to ACE of $6 million in the Mid-Atlantic region, and sales to ComEd of $103 million in the Midwest region, which eliminate upon consolidation.

(b) Other primarily includes Exelon’s corporate operations, shared service entities and other financing and investment activities.

(c) Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 17 — Supplemental Financial Information for additional information on total utility taxes.

(d) Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with Generation’s sale of certain products and services by and between Exelon’s segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in Operating revenues in the Consolidated Statements of Operations and Comprehensive Income.

PHI:

	Pepco		DPL		ACE		Other(b)			Intersegment Eliminations			PHI
Operating revenues(a):
2019
Rate-regulated electric revenues	$	531	$	261	$	274	$	—		$	(3	)	$	1,063
Rate-regulated natural gas revenues	—		24		—		—			—			24
Shared service and other revenues	—		2		—		97			(95		)	4
Total operating revenues	$	531	$	287	$	274	$	97		$	(98	)	$	1,091
2018
Rate-regulated electric revenues	$	523	$	261	$	265	$	—		$	(4	)	$	1,045
Rate-regulated natural gas revenues	—		28		—		—			—			28
Shared service and other revenues	—		—		—		108			(105		)	3
Total operating revenues	$	523	$	289	$	265	$	108		$	(109	)	$	1,076
Intersegment revenues:
2019	$	1	$	2	$	1	$	98		$	(99	)	$	3
2018	2		2		1		107			(109		)	3
Depreciation and amortization:
2019	$	93	$	45	$	40	$	10		$	—		$	188
2018	92		43		36		9			—			180
Operating expenses:
2019	$	438	$	243	$	246	$	100		$	(101	)	$	926
2018	438		247		240		110			(112		)	923
Interest expense, net:
2019	$	34	$	15	$	15	$	3		$	—		$	67
2018	32		14		16		3			—			65
Income (loss) before income taxes:
2019	$	66	$	34	$	14	$	106		$	(108	)	$	112
2018	61		31		10		85			(88		)	99
Income Taxes:
2019	$	2	$	4	$	—	$	—		$	—		$	6
2018	7		5		2		1			—			15
Net income (loss):
2019	$	64	$	30	$	14	$	(5	)	$	3		$	106
2018	54		26		8		(7		)	3			84
Capital Expenditures
2019	$	154	$	82	$	99	$	5		$	—		$	340
2018	160		101		107		3			—			371

__________

(a) Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 17 — Supplemental Financial Information for additional information on total utility taxes.

(b)

Other primarily includes PHI’s corporate operations, shared service entities and other financing and investment activities.

Six Months Ended June 30, 2019 and 2018

	Generation(a)		ComEd		PECO		BGE		PHI		Other(b)		Intersegment Eliminations			Exelon
Operating revenues(c):
2019
Competitive businesses electric revenues	$	8,052	$	—	$	—	$	—	$	—	$	—	$	(565	)	$	7,487
Competitive businesses natural gas revenues	1,214		—		—		—		—		—		(1		)	1,213
Competitive businesses other revenues	240		—		—		—		—		—		(2		)	238
Rate-regulated electric revenues	—		2,759		1,185		1,198		2,218		—		(17		)	7,343
Rate-regulated natural gas revenues	—		—		369		427		95		—		(8		)	883
Shared service and other revenues	—		—		—		—		6		940		(944		)	2
Total operating revenues	$	9,506	$	2,759	$	1,554	$	1,625	$	2,319	$	940	$	(1,537	)	$	17,166
2018
Competitive businesses electric revenues	$	8,448	$	—	$	—	$	—	$	—	$	—	$	(663	)	$	7,785
Competitive businesses natural gas revenues	1,444		—		—		—		—		—		(8		)	1,436
Competitive businesses other revenues	198		—		—		—		—		—		(2		)	196
Rate-regulated electric revenues	—		2,910		1,193		1,206		2,214		—		(27		)	7,496
Rate-regulated natural gas revenues	—		—		325		433		106		—		(9		)	855
Shared service and other revenues	—		—		—		—		7		940		(946		)	1
Total operating revenues	$	10,090	$	2,910	$	1,518	$	1,639	$	2,327	$	940	$	(1,655	)	$	17,769
Shared service and other revenues
Intersegment revenues(d):
2019	$	568	$	9	$	3	$	12	$	7	$	935	$	(1,534	)	$	—
2018	672		19		3		12		7		937		(1,650		)	—
Depreciation and amortization:
2019	$	814	$	508	$	164	$	252	$	369	$	47	$	—		$	2,154
2018	914		459		149		248		363		46		—			2,179
Operating expenses:
2019	$	9,059	$	2,174	$	1,187	$	1,325	$	1,981	$	942	$	(1,526	)	$	15,142
2018	9,515		2,335		1,249		1,378		2,048		936		(1,675		)	15,786
Interest expense, net:
2019	$	227	$	178	$	67	$	58	$	131	$	152	$	—		$	813
2018	202		175		64		51		128		125		—			745

	Generation(a)		ComEd		PECO			BGE		PHI		Other(b)			Intersegment Eliminations			Exelon
Income (loss) before income taxes:
2019	$	854	$	429	$	307		$	253	$	234	$	(151	)	$	—		$	1,926
2018	412		417		207			220		173		(114		)	—			1,315
Income Taxes:
2019	$	301	$	85	$	37		$	47	$	11	$	(27	)	$	—		$	454
2018	32		88		(3		)	41		24		(57		)	—			125
Net income (loss):
2019	$	540	$	344	$	270		$	206	$	223	$	(123	)	$	—		$	1,460
2018	368		329		210			179		149		(56		)	—			1,179
Capital Expenditures
2019	$	890	$	961	$	447		$	542	$	698	$	34		$	—		$	3,572
2018	1,298		1,026		411			434		629		9			—			3,807
Total assets:
June 30, 2019	$	48,402	$	31,889	$	11,002		$	10,006	$	22,454	$	8,142		$	(10,299	)	$	121,596
December 31, 2018	47,556		31,213		10,642			9,716		21,984		8,355			(9,800		)	119,666

__________

(a) Intersegment revenues for Generation in 2019 include revenue from sales to PECO of $80 million, sales to BGE of $133 million, sales to Pepco of $122 million, sales to DPL of $35 million and sales to ACE of $13 million in the Mid-Atlantic region, and sales to ComEd of $183 million in the Midwest region, which eliminate upon consolidation. Intersegment revenues for Generation in 2018 include revenue from sales to PECO of $61 million, sales to BGE of $128 million, sales to Pepco of $98 million, sales to DPL of $76 million and sales to ACE of $12 million in the Mid-Atlantic region, and sales to ComEd of $297 million in the Midwest region, which eliminate upon consolidation.

(b) Other primarily includes Exelon’s corporate operations, shared service entities and other financing and investment activities.

(c) Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 17 — Supplemental Financial Information for additional information on total utility taxes.

(d) Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with Generation’s sale of certain products and services by and between Exelon’s segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in Operating revenues in the Consolidated Statements of Operations and Comprehensive Income.

PHI:

	Pepco		DPL		ACE		Other(b)			Intersegment Eliminations			PHI
Operating revenues(a):
2019
Rate-regulated electric revenues	$	1,106	$	572	$	547	$	—		$	(7	)	$	2,218
Rate-regulated natural gas revenues	—		95		—		—			—			95
Shared service and other revenues	—		—		—		205			(199		)	6
Total operating revenues	$	1,106	$	667	$	547	$	205		$	(206	)	$	2,319
2018
Rate-regulated electric revenues	$	1,080	$	567	$	575	$	—		$	(8	)	$	2,214
Rate-regulated natural gas revenues	—		106		—		—			—			106
Shared service and other revenues	—		—		—		221			(214		)	7
Total operating revenues	$	1,080	$	673	$	575	$	221		$	(222	)	$	2,327
Intersegment revenues:
2019	$	3	$	3	$	1	$	205		$	(205	)	$	7
2018	3		4		2		220			(222		)	7
Depreciation and amortization:
2019	$	186	$	91	$	71	$	20		$	1		$	369
2018	188		88		69		19			(1		)	363
Operating expenses:
2019	$	929	$	550	$	498	$	208		$	(204	)	$	1,981
2018	939		582		526		224			(223		)	2,048
Interest expense, net:
2019	$	68	$	30	$	28	$	5		$	—		$	131
2018	63		27		32		5			1			128
Income (loss) before income taxes:
2019	$	123	$	94	$	25	$	219		$	(227	)	$	234
2018	94		69		18		149			(157		)	173
Income Taxes:
2019	$	4	$	11	$	1	$	(4	)	$	(1	)	$	11
2018	9		12		3		—			—			24
Net income (loss):
2019	$	119	$	83	$	24	$	(10	)	$	7		$	223
2018	85		57		15		(15		)	7			149
Capital Expenditures
2019	$	298	$	160	$	227	$	13		$	—		$	698
2018	287		166		170		6			—			629
Total assets:
June 30, 2019	$	8,556	$	4,683	$	3,886	$	11,168		$	(5,839	)	$	22,454
December 31, 2018	8,299		4,588		3,699		10,819			(5,421		)	21,984

__________

(a) Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 17 — Supplemental Financial Information for additional information on total utility taxes.

(b)

Other primarily includes PHI’s corporate operations, shared service entities and other financing and investment activities.

Analysis and reconciliation of reportable segment revenues for Generation

The following tables disaggregate the Registrants' revenue recognized from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. For Generation, the disaggregation of revenues reflects Generation’s two primary products of power sales and natural gas sales, with further disaggregation of power sales provided by geographic region. For the Utility Registrants, the disaggregation of revenues reflects the two primary utility services of rate-regulated electric sales and rate-regulated natural gas sales (where applicable), with further disaggregation of these tariff sales provided

by major customer groups. Exelon’s disaggregated revenues are consistent with Generation and the Utility Registrants, but exclude any intercompany revenues.

Competitive Business Revenues (Generation):

	Three Months Ended June 30, 2019
	Revenues from external parties(a)						Intersegment revenues			Total Revenues
	Contracts with customers		Other(b)		Total
Mid-Atlantic	$	1,162	$	21	$	1,183	$	6		$	1,189
Midwest	974		68		1,042		(8		)	1,034
New York	373		17		390		—			390
ERCOT	178		47		225		4			229
Other Power Regions	814		64		878		(17		)	861
Total Competitive Businesses Electric Revenues	3,501		217		3,718		(15		)	3,703
Competitive Businesses Natural Gas Revenues	177		156		333		15			348
Competitive Businesses Other Revenues(c)	108		51		159		—			159
Total Generation Consolidated Operating Revenues	$	3,786	$	424	$	4,210	$	—		$	4,210

	Three Months Ended June 30, 2018
	Revenues from external customers(a)							Intersegment revenues			Total Revenues
	Contracts with customers		Other(b)			Total
Mid-Atlantic	$	1,220	$	58		$	1,278	$	4		$	1,282
Midwest	1,062		73			1,135		(5		)	1,130
New York	392		(2		)	390		2			392
ERCOT	165		111			276		1			277
Other Power Regions	761		99			860		(39		)	821
Total Competitive Businesses Electric Revenues	3,600		339			3,939		(37		)	3,902
Competitive Businesses Natural Gas Revenues	295		194			489		37			526
Competitive Businesses Other Revenues(c)	125		26			151		—			151
Total Generation Consolidated Operating Revenues	$	4,020	$	559		$	4,579	$	—		$	4,579

__________

(a) Includes all wholesale and retail electric sales to third parties and affiliated sales to the Utility Registrants.

(b) Includes revenues from derivatives and leases.

(c) Other represents activities not allocated to a region. See text above for a description of included activities. Includes unrealized mark-to-market gains of $38 million and losses of $5 million in 2019 and 2018, respectively, and elimination of intersegment revenues.

Revenues net of purchased power and fuel expense (Generation):

	Three Months Ended June 30, 2019							Three Months Ended June 30, 2018
	RNF from external customers(a)		Intersegment RNF			Total RNF		RNF from external customers(a)		Intersegment RNF			Total RNF
Mid-Atlantic	$	644	$	8		$	652	$	722	$	13		$	735
Midwest	738		(8		)	730		770		2			772
New York	250		3			253		259		7			266
ERCOT	80		(1		)	79		129		(47		)	82
Other Power Regions	154		(20		)	134		229		(43		)	186
Total Revenues net of purchased power and fuel for Reportable Segments	1,866		(18		)	1,848		2,109		(68		)	2,041
Other(b)	52		18			70		190		68			258
Total Generation Revenues net of purchased power and fuel expense	$	1,918	$	—		$	1,918	$	2,299	$	—		$	2,299

__________

(a) Includes purchases and sales from/to third parties and affiliated sales to the Utility Registrants.

(b)

Other represents activities not allocated to a region. See text above for a description of included activities. Includes unrealized mark-to-market losses of $74 million and gains of $90 million in 2019 and 2018, respectively, accelerated nuclear fuel amortization associated with announced early plant retirements as discussed in Note 8 — Early Plant Retirements of $5 million decrease and $20 million decrease to RNF in 2019 and 2018, respectively, and the elimination of intersegment RNF.

The following tables disaggregate the Registrants' revenue recognized from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. For Generation, the disaggregation of revenues reflects Generation’s two primary products of power sales and natural gas sales, with further disaggregation of power sales provided by geographic region. For the Utility Registrants, the disaggregation of revenues reflects the two primary utility services of rate-regulated electric sales and rate-regulated natural gas sales (where applicable), with further disaggregation of these tariff sales provided by major customer groups. Exelon’s disaggregated revenues are consistent with Generation and the Utility Registrants, but exclude any intercompany revenues.

Competitive Business Revenues (Generation):

	Six Months Ended June 30, 2019
	Revenues from external parties(a)							Intersegment Revenues			Total Revenues
	Contracts with customers		Other(b)			Total
Mid-Atlantic	$	2,448	$	(2	)	$	2,446	$	(1	)	$	2,445
Midwest	2,030		126			2,156		(14		)	2,142
New York	781		1			782		—			782
ERCOT	307		126			433		8			441
Other Power Regions	1,976		259			2,235		(21		)	2,214
Total Competitive Businesses Electric Revenues	7,542		510			8,052		(28		)	8,024
Competitive Businesses Natural Gas Revenues	763		451			1,214		28			1,242
Competitive Businesses Other Revenues(c)	230		10			240		—			240
Total Generation Consolidated Operating Revenues	$	8,535	$	971		$	9,506	$	—		$	9,506

	Six Months Ended June 30, 2018
	Revenues from external customers(a)							Intersegment revenues			Total Revenues
	Contracts with customers		Other(b)			Total
Mid-Atlantic	$	2,574	$	138		$	2,712	$	10		$	2,722
Midwest	2,336		143			2,479		(4		)	2,475
New York	831		(31		)	800		1			801
ERCOT	315		169			484		2			486
Other Power Regions	1,696		277			1,973		(71		)	1,902
Total Competitive Businesses Electric Revenues	7,752		696			8,448		(62		)	8,386
Competitive Businesses Natural Gas Revenues	816		628			1,444		62			1,506
Competitive Businesses Other Revenues(c)	258		(60		)	198		—			198
Total Generation Consolidated Operating Revenues	$	8,826	$	1,264		$	10,090	$	—		$	10,090

__________

(a) Includes all wholesale and retail electric sales to third parties and affiliated sales to the Utility Registrants.

(b) Includes revenues from derivatives and leases.

(c) Other represents activities not allocated to a region. See text above for a description of included activities. Includes unrealized mark-to-market losses of $14 million and $102 million in 2019 and 2018, respectively, and elimination of intersegment revenues.

Revenues net of purchased power and fuel expense (Generation):

	Six Months Ended June 30, 2019							Six Months Ended June 30, 2018
	RNF from external customers(a)		Intersegment RNF			Total RNF		RNF from external customers(a)		Intersegment RNF			Total RNF
Mid-Atlantic	$	1,324	$	10		$	1,334	$	1,558	$	28		$	1,586
Midwest	1,506		(6		)	1,500		1,617		14			1,631
New York	512		7			519		541		8			549
ERCOT	178		(24		)	154		235		(117		)	118
Other Power Regions	328		(36		)	292		511		(87		)	424
Total Revenues net of purchased power and fuel expense for Reportable Segments	3,848		(49		)	3,799		4,462		(154		)	4,308
Other(b)	161		49			210		55		154			209
Total Generation Revenues net of purchased power and fuel expense	$	4,009	$	—		$	4,009	$	4,517	$	—		$	4,517

__________

(a) Includes purchases and sales from/to third parties and affiliated sales to the Utility Registrants.

(b)

Other represents activities not allocated to a region. See text above for a description of included activities. Includes unrealized mark-to-market losses of $102 million and $175 million in 2019 and 2018, respectively, accelerated nuclear fuel amortization associated with announced early plant retirements as discussed in Note 8 — Early Plant Retirements of $9 million and $34 million decrease to RNF in 2019 and 2018, respectively, and the elimination of intersegment RNF.

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

Electric and Gas Revenue by Customer Class (Utility Registrants):

	Three Months Ended June 30, 2019
Revenues from contracts with customers	ComEd			PECO			BGE		PHI			Pepco			DPL		ACE
Rate-regulated electric revenues
Residential	$	647		$	343		$	282	$	494		$	224		$	135	$	135
Small commercial & industrial	349			99			59		120			35			44		41
Large commercial & industrial	127			52			109		278			207			25		46
Public authorities & electric railroads	10			7			6		16			8			4		4
Other(a)	227			62			82		159			56			54		50
Total rate-regulated electric revenues(b)	$	1,360		$	563		$	538	$	1,067		$	530		$	262	$	276
Rate-regulated natural gas revenues
Residential	$	—		$	49		$	60	$	11		$	—		$	11	$	—
Small commercial & industrial	—			33			11		7			—			7		—
Large commercial & industrial	—			—			23		2			—			2		—
Transportation	—			6			—		3			—			3		—
Other(c)	—			1			7		1			—			1		—
Total rate-regulated natural gas revenues(d)	$	—		$	89		$	101	$	24		$	—		$	24	$	—
Total rate-regulated revenues from contracts with customers	$	1,360		$	652		$	639	$	1,091		$	530		$	286	$	276
Other revenues
Revenues from alternative revenue programs	$	(14	)	$	(3	)	$	6	$	(3	)	$	(1	)	$	—	$	(2	)
Other rate-regulated electric revenues(e)	5			6			3		3			2			1		—
Other rate-regulated natural gas revenues(e)	—			—			1		—			—			—		—
Total other revenues	$	(9	)	$	3		$	10	$	—		$	1		$	1	$	(2	)
Total rate-regulated revenues for reportable segments	$	1,351		$	655		$	649	$	1,091		$	531		$	287	$	274

	Three Months Ended June 30, 2018
Revenues from contracts with customers	ComEd			PECO		BGE			PHI			Pepco			DPL		ACE
Rate-regulated electric revenues
Residential	$	699		$	338	$	295		$	505		$	228		$	142	$	135
Small commercial & industrial	357			97		60			115			33			44		38
Large commercial & industrial	127			52		101			282			212			25		45
Public authorities & electric railroads	12			6		7			16			9			3		4
Other(a)	213			60		78			133			49			41		44
Total rate-regulated electric revenues(b)	$	1,408		$	553	$	541		$	1,051		$	531		$	255	$	266
Rate-regulated natural gas revenues
Residential	$	—		$	62	$	74		$	13		$	—		$	13	$	—
Small commercial & industrial	—			25		13			8			—			8		—
Large commercial & industrial	—			—		23			1			—			1		—
Transportation	—			5		—			4			—			4		—
Other(c)	—			1		12			2			—			2		—
Total rate-regulated natural gas revenues(d)	$	—		$	93	$	122		$	28		$	—		$	28	$	—
Total rate-regulated revenues from contracts with customers	$	1,408		$	646	$	663		$	1,079		$	531		$	283	$	266
Other revenues
Revenues from alternative revenue programs	$	(17	)	$	2	$	(4	)	$	(7	)	$	(10	)	$	4	$	(1	)
Other rate-regulated electric revenues(e)	7			5		3			4			2			2		—
Other rate-regulated natural gas revenues(e)	—			—		—			—			—			—		—
Total other revenues	$	(10	)	$	7	$	(1	)	$	(3	)	$	(8	)	$	6	$	(1	)
Total rate-regulated revenues for reportable segments	$	1,398		$	653	$	662		$	1,076		$	523		$	289	$	265

__________

(a) Includes revenues from transmission revenue from PJM, wholesale electric revenue and mutual assistance revenue.

(b) Includes operating revenues from affiliates of $5 million, $1 million, $1 million, $3 million, $1 million, $2 million and $1 million at ComEd, PECO, BGE, PHI, Pepco, DPL and ACE, respectively, in 2019 and $5 million, $2 million, $2 million, $3 million $2 million, $2 million and $1 million at ComEd, PECO, BGE, PHI, Pepco, DPL and ACE, respectively, in 2018.

(c) Includes revenues from off-system natural gas sales.

(d) Includes operating revenues from affiliates of less than $1 million and $4 million at PECO and BGE, respectively, in 2019 and 2018.

(e)

Includes late payment charge revenues.

Electric and Gas Revenue by Customer Class (Utility Registrants):

	Six Months Ended June 30, 2019
Revenues from contracts with customers	ComEd			PECO			BGE		PHI		Pepco		DPL		ACE
Rate-regulated electric revenues
Residential	$	1,356		$	752		$	667	$	1,073	$	480	$	320	$	273
Small commercial & industrial	709			195			129		241		73		93		75
Large commercial & industrial	259			100			219		545		411		49		85
Public authorities & electric railroads	23			14			13		31		17		7		7
Other(a)	442			123			160		317		108		101		108
Total rate-regulated electric revenues(b)	2,789			1,184			1,188		2,207		1,089		570		548
Rate-regulated natural gas revenues
Residential	—			247			279		55		—		55		—
Small commercial & industrial	—			105			46		26		—		26		—
Large commercial & industrial	—			1			73		3		—		3		—
Transportation	—			13			—		7		—		7		—
Other(c)	—			3			13		4		—		4		—
Total rate-regulated natural gas revenues(d)	—			369			411		95		—		95		—
Total rate-regulated revenues from contracts with customers	2,789			1,553			1,599		2,302		1,089		665		548
Other revenues
Revenues from alternative revenue programs	(42		)	(6		)	17		12		13		1		(1		)
Other rate-regulated electric revenues(e)	12			7			6		5		4		1		—
Other rate-regulated natural gas revenues(e)	—			—			3		—		—		—		—
Total other revenues	(30		)	1			26		17		17		2		(1		)
Total rate-regulated revenues for reportable segments	$	2,759		$	1,554		$	1,625	$	2,319	$	1,106	$	667	$	547

	Six Months Ended June 30, 2018
Revenues from contracts with customers	ComEd			PECO		BGE			PHI		Pepco		DPL		ACE
Rate-regulated electric revenues
Residential	$	1,416		$	741	$	688		$	1,114	$	486	$	333	$	295
Small commercial & industrial	741			198		128			230		65		90		75
Large commercial & industrial	280			110		207			541		402		48		91
Public authorities & electric railroads	25			14		14			30		16		7		7
Other(a)	444			122		156			289		98		82		110
Total rate-regulated electric revenues(b)	2,906			1,185		1,193			2,204		1,067		560		578
Rate-regulated natural gas revenues
Residential	—			223		298			60		—		60		—
Small commercial & industrial	—			87		47			26		—		26		—
Large commercial & industrial	—			1		70			5		—		5		—
Transportation	—			11		—			9		—		9		—
Other(c)	—			3		40			6		—		6		—
Total rate-regulated natural gas revenues(d)	—			325		455			106		—		106		—
Total rate-regulated revenues from contracts with customers	2,906			1,510		1,648			2,310		1,067		666		578
Other revenues
Revenues from alternative revenue programs	(12		)	1		(17		)	12		10		5		(3		)
Other rate-regulated electric revenues(e)	16			7		6			5		3		2		—
Other rate-regulated natural gas revenues(e)	—			—		2			—		—		—		—
Total other revenues	4			8		(9		)	17		13		7		(3		)
Total rate-regulated revenues for reportable segments	$	2,910		$	1,518	$	1,639		$	2,327	$	1,080	$	673	$	575

__________

(a) Includes revenues from transmission revenue from PJM, wholesale electric revenue and mutual assistance revenue.

(b) Includes operating revenues from affiliates of $9 million, $2 million, $1 million, $7 million, $3 million, $3 million and $1 million at ComEd, PECO, BGE, PHI, Pepco, DPL and ACE, respectively, in 2019 and $19 million, $3 million, $3 million, $7 million $3 million, $4 million and $2 million at ComEd, PECO, BGE, PHI, Pepco, DPL and ACE, respectively, in 2018.

(c) Includes revenues from off-system natural gas sales.

(d) Includes operating revenues from affiliates of $1 million and $9 million at PECO and BGE, respectively, in 2019 and less than $1 million and $9 million at PECO and BGE, respectively, in 2018,

(e)

Includes late payment charge revenues.