Supplemental Financial Information (Tables)

12 Months Ended

Dec. 31, 2015

Supplemental Financial Information [Abstract]

Components of taxes other than income

The following tables provide additional information about the Registrants’ Consolidated Statements of Operations and Comprehensive Income for the years ended December 31, 2015, 2014 and 2013.

For the year ended December 31, 2015	Exelon		Generation		ComEd		PECO		BGE
Taxes other than income
Utility(a)	$	474	$	105	$	236	$	133	$	85
Property	407		250		27		11		119
Payroll	201		118		28		14		16
Other	118		16		5		2		4
Total taxes other than income	$	1,200	$	489	296		$	160	$	224

For the year ended December 31, 2014	Exelon		Generation		ComEd		PECO		BGE
Taxes other than income
Utility(a)	$	456	$	89	$	238	$	128	$	86
Property	396		240		25		15		114
Payroll	200		118		28		14		18
Other	102		18		2		2		3
Total taxes other than income	$	1,154	$	465	$	293	$	159	$	221

For the year ended December 31, 2013	Exelon		Generation		ComEd		PECO		BGE
Taxes other than income
Utility(a)	$	449	$	79	$	241	$	129	$	82
Property	302		205		24		14		112
Payroll	159		89		27		13		15
Other	185		16		7		2		4
Total taxes other than income	$	1,095	$	389	$	299	$	158	$	213

_____________________ 

(a) Generation’s utility tax represents gross receipts tax related to its retail operations and ComEd’s, PECO’s and BGE’s utility taxes represent municipal and state utility taxes and gross receipts taxes related to their operating revenues. The offsetting collection of utility taxes from customers is recorded in revenues on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.

Components of non-operating income and expenses

For the year ended December 31, 2015	Exelon			Generation			ComEd		PECO			BGE
Other, Net
Decommissioning-related activities:
Net realized income on decommissioning trust funds (a)—
Regulatory agreement units	$	232		$	232		$	—	$	—		$	—
Non-regulatory agreement units	156			156			—		—			—
Net unrealized losses on decommissioning trust funds—
Regulatory agreement units	(282		)	(282		)	—		—			—
Non-regulatory agreement units	(197		)	(197		)	—		—			—
Net unrealized gains on pledged assets—
Zion Station decommissioning	7			7			—		—			—
Regulatory offset to decommissioning trust fund-related activities (b)	21			21			—		—			—
Total decommissioning-related activities	(63		)	(63		)	—		—			—
Investment income (loss)	8			3			—		(2		)	4		(c)
Long-term lease income	15			—			—		—			—
Interest income related to uncertain income tax positions	1			1			—		—			—
AFUDC—Equity	24			—			5		5			14
Terminated interest rate swaps (d)	(26		)	—			—		—			—
PHI merger related debt exchange (e)	(22		)	—			—		—			—
Other	17			(1		)	16		2			—
Other, net	$	(46	)	$	(60	)	$	21	$	5		$	18

For the year ended December 31, 2014	Exelon			Generation			ComEd		PECO			BGE
Other, Net
Decommissioning-related activities:
Net realized income on decommissioning trust funds (a)—
Regulatory agreement units	$	216		$	216		$	—	$	—		$	—
Non-regulatory agreement units	159			159			—		—			—
Net unrealized gains on decommissioning trust funds—
Regulatory agreement units	180			180			—		—			—
Non-regulatory agreement units	134			134			—		—			—
Net unrealized gains on pledged assets—
Zion Station decommissioning	29			29			—		—			—
Regulatory offset to decommissioning trust fund-related activities (b)	(358		)	(358		)	—
Total decommissioning-related activities	360			360			—		—			—
Investment income	1			1			—		(1		)	7			(c)
Long-term lease income	24			—			—		—			—
Interest income related to uncertain income tax positions	40			54			—		—			—
AFUDC—Equity	21			—			3		6			12
Other	9			(9		)	14		2			(1		)
Other, net	$	455		$	406		$	17	$	7		$	18

For the year ended December 31, 2013	Exelon			Generation			ComEd		PECO			BGE
Other, Net
Decommissioning-related activities:
Net realized income on decommissioning trust funds (a)—
Regulatory agreement units	$	256		$	256		$	—	$	—		$	—
Non-regulatory agreement units	77			77			—		—			—
Net unrealized gains on decommissioning trust funds—
Regulatory agreement units	406			406			—		—			—
Non-regulatory agreement units	146			146			—		—			—
Net unrealized gains on pledged assets—
Zion Station decommissioning	7			7			—		—			—
Regulatory offset to decommissioning trust fund-related activities (b)	(546		)	(546		)	—					—
Total decommissioning-related activities	346			346			—		—			—
Investment income	8			(1		)	—		(1		)	9		(c)
Long-term lease income	28			—			—		—			—
Interest income related to uncertain income tax positions	24			4			—		—			—
AFUDC—Equity	22			—			11		4			7
Other	32			6			15		3			1
Other, net	$	460		$	355		$	26	$	6		$	17

_________________________

(a) Includes investment income and realized gains and losses on sales of investments within the nuclear decommissioning trust funds.

(b) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of net income taxes related to all NDT fund activity for those units. See Note 16 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.

(c) Relates to the cash return on BGE’s rate stabilization deferral. See Note 3 — Regulatory Matters for additional information regarding the rate stabilization deferral.

(d) In January 2015, in connection with Generation's $750 million issuance of five-year Senior Unsecured Notes, Exelon terminated certain floating-to-fixed interest rate swaps. As the original forecasted transactions were a series of future interest payments over a ten year period, a portion of the anticipated interest payments are probable not to occur. As a result, $26 million of anticipated payments were reclassified from Accumulated OCI to Other, net in Exelon's Consolidated Statement of Operations and Comprehensive Income.

(e) See Note 14—Debt and Credit Agreements and 4—Mergers, Acquisitions, and Dispositions for additional information on the PHI merger related debt exchange.

Components of depreciation, amortization and accretion, and other, net

The following tables provide additional information regarding the Registrants’ Consolidated Statements of Cash Flows for the years ended December 31, 2015, 2014 and 2013.

For the year ended December 31, 2015	Exelon		Generation		ComEd		PECO		BGE
Depreciation, amortization, accretion and depletion
Property, plant and equipment	$	2,227	$	1,007	$	635	$	240	$	289
Regulatory assets	170		—		72		20		77
Amortization of intangible assets, net	54		47		—		—		—
Amortization of energy contract assets and liabilities (a)	22		22		—		—		—
Nuclear fuel (b)	1,116		1,116		—		—		—
ARO accretion (c)	398		397		—		—		—
Total depreciation, amortization, accretion and depletion	$	3,987	$	2,589	$	707	$	260	$	366

For the year ended December 31, 2014	Exelon		Generation		ComEd		PECO		BGE
Depreciation, amortization, accretion and depletion
Property, plant and equipment	$	2,080	$	922	$	588	$	227	$	288
Regulatory assets	191		—		99		9		83
Amortization of intangible assets, net	44		44		—		—		—
Amortization of energy contract assets and liabilities (a)	135		135		—		—		—
Nuclear fuel (b)	1,073		1,073		—		—		—
ARO accretion (c)	345		345		—		—		—
Total depreciation, amortization, accretion and depletion	$	3,868	$	2,519	$	687	$	236	$	371

For the year ended December 31, 2013	Exelon		Generation		ComEd		PECO		BGE
Depreciation, amortization, accretion and depletion
Property, plant and equipment	$	1,893	$	813	$	545	$	219	$	264
Regulatory assets	212		—		119		9		84
Amortization of intangible assets, net	48		43		5		—		—
Amortization of energy contract assets and liabilities (a)	430		507		—		—		—
Nuclear fuel (b)	921		921		—		—		—
ARO accretion (c)	275		275		—		—		—
Total depreciation, amortization and accretion	$	3,779	$	2,559	$	669	$	228	$	348

________________________

(a) Included in Operating revenues or Purchased power and fuel on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.

(b) Included in Purchased power and fuel expense on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.

(c) Included in Operating and maintenance expense on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.

Schedule of Cash Flow, Supplemental Disclosure

For the year ended December 31, 2015	Exelon			Generation			ComEd			PECO			BGE
Cash paid (refunded) during the year:
Interest (net of amount capitalized)	$	930		$	348		$	308		$	94		$	120
Income taxes (net of refunds)	342			476			(265		)	64			73
Other non-cash operating activities:
Pension and non-pension postretirement benefit costs	$	637		$	269		$	206		$	39		$	65
Loss from equity method investments	7			8			—			—			—
Provision for uncollectible accounts	120			22			53			30			15
Provision for excess and obsolete inventory	10			9			1			—			—
Stock-based compensation costs	97			—			—			—			—
Other decommissioning-related activity (a)	(82		)	(82		)	—			—			—
Energy-related options (b)	21			21			—			—			—
Amortization of regulatory asset related to debt costs	7			—			5			2			—
Amortization of rate stabilization deferral	73			—			—			—			73
Amortization of debt fair value adjustment	(17		)	(17		)	—			—			—
Amortization of debt costs	58			15			4			2			2
Discrete impacts from EIMA (c)	144			—			144			—			—
Lower of cost or market inventory adjustment	23			23			—			—			—
Other	11			—			3			(3		)	(18		)
Total other non-cash operating activities	$	1,109		$	268		$	416		$	70		$	137
Non-cash investing and financing activities:
Change in PPE related to ARO update	$	885		$	885		$	—		$	—		$	—
Change in capital expenditures not paid	96			82			34			(13		)	(9		)
Non-cash financing of capital projects	77			77			—			—			—
Nuclear fuel procurement (d)	57			57			—			—			—
Indemnification of like-kind exchange position (e)	—			—			7			—			—
Long-term software licensing agreement (f)	95			—			—			—			—

____________________________

(a) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 16 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.

(b) Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.

(c) Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate tariff. See Note 3 — Regulatory Matters for more information.

(d) Relates to the nuclear fuel procurement contract for the purchase of fixed quantities of converted uranium, which was delivered to Generation in 2015. Generation is required to make payments starting September 28, 2018, with the final payment being due no later than September 30, 2020.

(e) See Note 15 — Income Taxes for discussion of the like-kind exchange tax position.

(f) Relates to a long-term software license agreement entered into on May 30, 2015. Exelon is required to make payments starting August of 2015 through May of 2024. See Note 14 — Debt and Credit Agreements for additional information.

For the year ended December 31, 2014	Exelon			Generation				ComEd			PECO			BGE
Cash paid (refunded) during the year:
Interest (net of amount capitalized)	$	940		$	322			$	292		$	94		$	111
Income taxes (net of refunds)	314			227				(6		)	85			(21		)
Other non-cash operating activities:
Pension and non-pension postretirement benefit costs	$	560		$	249			$	162		$	36		$	64
Loss from equity method investments	22			20				—			—			—
Provision for uncollectible accounts	156			14				26			52			64
Provision for excess and obsolete inventory	5			5				—			—			—
Stock-based compensation costs	91			—				—			—			—
Other decommissioning-related activity (a)	(132		)	(132		)		—			—			—
Energy-related options (b)	122			122				—			—			—
Amortization of regulatory asset related to debt costs	11			—				8			3			—
Amortization of rate stabilization deferral	65			—				—			—			65
Amortization of debt fair value adjustment	(23		)	(23		)		—			—			—
Merger-related commitments	44			44				—			—			—
Amortization of debt costs	53			12				4			2			2
Discrete impacts from EIMA (c)	53			—				53			—			—
Lower of cost or market inventory adjustment	29			29				—			—			—
Other	(2		)	6				2			(1		)	(15		)
Total other non-cash operating activities	$	1,054		$	346			$	255		$	92		$	180
Non-cash investing and financing activities:
Change in PPE related to ARO update	$	72		$	72			$	—		$	—		$	—
Change in capital expenditures not paid	220			(61		)	(d)	78			—			25
Fair value of net assets recorded upon CENG consolidation (e)	3,400			3,400				—			—			—
Issuance of equity units (f)	131			—				—			—			—
Nuclear fuel procurement (g)	70			70				—			—			—
Indemnification of like-kind exchange position (h)	—			—				5			—			—

______________________ 

(a) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 16 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.

(b) Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.

(c) Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate tariff. See Note 3 — Regulatory Matters for more information.

(d) Includes $170 million of changes in capital expenditures not paid between December 31, 2014 and 2013 related to Antelope Valley.

(e) See Note 5 — Investment in Constellation Energy Nuclear Group, LLC for additional information.

(f) Relates to the present value of the contract payments for the equity units issued by Exelon. See Note 20 — Stock-Based Compensation Plans for additional information.

(g) Relates to the nuclear fuel procurement contracts for the purchase of fixed quantities of uranium, which was delivered to Generation in 2014. Generation is required to make payments starting June 30, 2016, with the final payment being due no later than June 30, 2018.

(h) See Note 15 — Income Taxes for discussion of the like-kind exchange tax position.

For the year ended December 31, 2013	Exelon			Generation				ComEd			PECO			BGE
Cash paid (refunded) during the year:
Interest (net of amount capitalized)	$	866		$	291			$	283		$	95		$	130
Income taxes (net of refunds)	112			(18		)		33			70			42
Other non-cash operating activities:
Pension and non-pension postretirement benefit costs	$	825		$	345			$	308		$	43		$	56
Gain from equity method investments	(10		)	(10		)		—			—			—
Provision for uncollectible accounts	101			10				(15		)	61			44
Provision for excess and obsolete inventory	9			9				—			—			—
Stock-based compensation costs	120			—				—			—			—
Other decommissioning-related activity (a)	(169		)	(169		)		—			—			—
Energy-related options (b)	104			104				—			—			—
Amortization of regulatory asset related to debt costs	12			—				9			3			—
Amortization of rate stabilization deferral	66			—				—			—			66
Amortization of debt fair value adjustment	(34		)	(34		)		—			—			—
Discrete impacts from EIMA (c)	(271		)	—				(271		)	—			—
Amortization of debt costs	18			10				1			2			2
Other	(53		)	5				(4		)	(1		)	(15		)
Total other non-cash operating activities	$	718		$	270			$	28		$	108		$	153
Non-cash investing and financing activities:
Change in PPE related to ARO update	$	(128	)	$	(128	)		$	—		$	—		$	4
Change in capital expenditures not paid	(38		)	(107		)	(d)	(8		)	13			(48		)
Consolidated VIE dividend to noncontrolling interest	63			63				—			—			—
Indemnification of like-kind exchange position (e)	—			—				176			—			—

_________________________ 

(a) Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 16 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.

(b) Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.

(c) Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through pre-established performance-based formula rate tariff. See Note 3 — Regulatory Matters.

(d) Includes $55 million of changes in capital expenditures not paid between December 31, 2013 and 2012 related to Antelope Valley.

(e) See Note 15 — Income Taxes for discussion of the like-kind exchanged tax position.

Investments

The following tables provide additional information about assets and liabilities of the Registrants at December 31, 2015 and 2014.

December 31, 2015	Exelon		Generation		ComEd		PECO		BGE
Investments
Equity method investments:
Financing trusts (a)	$	22	$	—	$	6	$	8	$	8
Bloom	63		63		—		—		—
Net Power	23		23		—		—		—
Other equity method investments	4		3		—		—		—
Total equity method investments	112		89		6		8		8
Other investments:
Net investment in leases (b)	358		6		—		—		—
Employee benefit trusts and investments (c)	85		31		—		20		4
Other cost method investments	55		55		—		—		—
Other available for sale investments	29		29		—		—		—
Total investments	$	639	$	210	$	6	$	28	$	12

December 31, 2014	Exelon		Generation		ComEd		PECO		BGE
Investments
Equity method investments:
Financing trusts (a)	$	22	$	—	$	6	$	8	$	8
Bloom	13		13		—		—		—
Net Power	9		9		—		—		—
Sunnyside	5		5		—		—		—
Other equity method investments	1		1		—		—		—
Total equity method investments	50		28		6		8		8
Other investments:
Net investment in leases (b)	367		7		—		—		—
Employee benefit trusts and investments (c)	85		27		—		23		4
Other cost method investments	37		37		—		—		—
Other available for sale investments	5		5		—		—		—
Total investments	$	544	$	104	$	6	$	31	$	12

_________________________

(a) Includes investments in affiliated financing trusts, which were not consolidated within the financial statements of Exelon and are shown as investments on the Consolidated Balance Sheets. See Note 1 — Significant Accounting Policies for additional information.

(b) Represents direct financing lease investments. See Note 8 —Impairment of Long-Lived Assets for additional information.

(c) The Registrants’ investments in these marketable securities are recorded at fair market value.

Accrued Liabilities Current

The following tables provide additional information about liabilities of the Registrants at December 31, 2015 and 2014.

December 31, 2015	Exelon			Generation			ComEd		PECO		BGE
Accrued expenses
Compensation-related accruals (a)	$	1,014		$	547		$	183	$	66	$	57
Taxes accrued	293			186			63		4		23
Interest accrued	915			77			443		35		27
Severance accrued	21			11			3		—		1
Other accrued expenses	133			114			14		4		2
Total accrued expenses	$	2,376		$	935		$	706	$	109	$	110
December 31, 2014	Exelon			Generation			ComEd		PECO		BGE
Accrued expenses
Compensation-related accruals (a)	$	832		$	447		$	153	$	50	$	58
Taxes accrued	305			248			59		3		42
Interest accrued	240			66			102		33		29
Severance accrued	49			33			2		1		2
Other accrued expenses	113		(b)	92		(b)	15		4		—
Total accrued expenses	$	1,539		$	886		$	331	$	91	$	131

_______________________ 

(a) Primarily includes accrued payroll, bonuses and other incentives, vacation and benefits.

(b) Includes $19 million for amounts accrued related to Antelope Valley as of December 31, 2014.