Commitments and Contingencies (Details) (USD $)	1 Months Ended	12 Months Ended								0 Months Ended													3 Months Ended	12 Months Ended																				1 Months Ended	12 Months Ended									0 Months Ended			12 Months Ended		0 Months Ended	12 Months Ended							12 Months Ended										12 Months Ended																3 Months Ended	12 Months Ended								12 Months Ended
	Oct. 31, 2007	Dec. 31, 2013 T OpenClaims		Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2013 Other Purchase Obligations [Member]	Dec. 31, 2013 Maximum estimated damages per text message	Dec. 31, 2013 Minimum estimated damages per text message	Apr. 12, 2012 Cotter Corporation [Member] Defendants	Feb. 28, 2012 Cotter Corporation [Member] Defendants	Dec. 31, 2013 Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2012 Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2013 Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2012 Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2013 Financial Standby Letter of Credit [Member]	Dec. 31, 2013 Surety Bond [Member]	Dec. 31, 2013 Property Lease Guarantee [Member]	Dec. 31, 2013 Performance Guarantee [Member]	Dec. 31, 2013 Energy Contract Guarantee [Member]	Dec. 31, 2013 Nuclear Insurance Premiums [Member]	Dec. 31, 2013 Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member]	Sep. 30, 2013 Exelon Generation Co L L C [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] States Reactors		Dec. 31, 2012 Exelon Generation Co L L C [Member]		Dec. 31, 2011 Exelon Generation Co L L C [Member]		Dec. 31, 2013 Exelon Generation Co L L C [Member] Net Capacity Purchases [Member]		Dec. 31, 2013 Exelon Generation Co L L C [Member] Power Purchases [Member]		Dec. 31, 2013 Exelon Generation Co L L C [Member] Transmission Rights Purchases [Member]		Dec. 31, 2013 Exelon Generation Co L L C [Member] Purchased Energy from Equity Investment [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Total Unregulated Energy Commitments [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Public Utilities, Inventory, Fuel [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Solar Facility Construction [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Other Purchase Obligations [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Perryman Construction [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Beebe Construction [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] FourmileConstructionMember [Member]	Jan. 31, 2012 Exelon Generation Co L L C [Member] Midwest Generation Sites	Dec. 31, 2013 Exelon Generation Co L L C [Member] Cotter Corporation [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2012 Exelon Generation Co L L C [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2012 Exelon Generation Co L L C [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Financial Standby Letter of Credit [Member]		Dec. 31, 2013 Exelon Generation Co L L C [Member] Performance Guarantee [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Energy Contract Guarantee [Member]	Jan. 31, 2005 Exelon Generation Co L L C [Member] Sithe Guarantee [Member]	Feb. 09, 2007 Exelon Generation Co L L C [Member] TEG And TEP Guarantee [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Nuclear Insurance Premiums [Member]	Dec. 31, 2013 Exelon Generation Co L L C [Member] Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member]	Dec. 31, 2013 Constellation Energy Nuclear Group LLC [Member] Guarantees Other Than Letters Of Credit and Nuclear Insurance Premiums [Member]	Jul. 11, 2011 Commonwealth Edison Co [Member] Customers	Dec. 31, 2013 Commonwealth Edison Co [Member] Defendants Customers MGPSites		Dec. 31, 2012 Commonwealth Edison Co [Member]	Dec. 31, 2011 Commonwealth Edison Co [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] DSP Program Electric Procurement Contracts [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Renewable Energy Including Renewable Energy Credits [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Other Purchase Obligations [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Maximum estimated damages per text message	Dec. 31, 2013 Commonwealth Edison Co [Member] Minimum estimated damages per text message	Dec. 31, 2013 Commonwealth Edison Co [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2012 Commonwealth Edison Co [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2012 Commonwealth Edison Co [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Financial Standby Letter of Credit [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Surety Bond [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Performance Guarantee [Member]	Dec. 31, 2013 Commonwealth Edison Co [Member] Trust Preferred Securities [Member]	Dec. 31, 2013 PECO Energy Co [Member] MGPSites		Dec. 31, 2012 PECO Energy Co [Member]	Dec. 31, 2011 PECO Energy Co [Member]	Dec. 31, 2013 PECO Energy Co [Member] DSP Program Electric Procurement Contracts [Member]	Dec. 31, 2013 PECO Energy Co [Member] Alternative Energy Credits [Member]	Dec. 31, 2013 PECO Energy Co [Member] Public Utilities, Inventory, Fuel [Member]	Dec. 31, 2013 PECO Energy Co [Member] Other Purchase Obligations [Member]	Dec. 31, 2013 PECO Energy Co [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2012 PECO Energy Co [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2013 PECO Energy Co [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2012 PECO Energy Co [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2013 PECO Energy Co [Member] Financial Standby Letter of Credit [Member]	Dec. 31, 2013 PECO Energy Co [Member] Surety Bond [Member]	Dec. 31, 2013 PECO Energy Co [Member] Performance Guarantee [Member]	Dec. 31, 2013 PECO Energy Co [Member] Trust Preferred Securities [Member]	Jun. 30, 2012 Baltimore Gas and Electric Company [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Claiments	Dec. 31, 2012 Baltimore Gas and Electric Company [Member]		Dec. 31, 2011 Baltimore Gas and Electric Company [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] DSP Program Electric Procurement Contracts [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Curtailment Services [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Public Utilities, Inventory, Fuel [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Other Purchase Obligations [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Sixty-Eighth Street Dump [Member] Defendants	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Rossville ash site [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2012 Baltimore Gas and Electric Company [Member] Total Accrual For Environmental Loss Contingencies [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2012 Baltimore Gas and Electric Company [Member] Accrual For MGP Investigation And Remediation [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Financial Standby Letter of Credit [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Surety Bond [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Performance Guarantee [Member]	Dec. 31, 2013 Baltimore Gas and Electric Company [Member] Trust Preferred Securities [Member]	Dec. 31, 2013 Midwest Generation, LLC [Member]	Sep. 30, 2013 Midwest Generation, LLC [Member]	Dec. 31, 2013 Midwest Generation, LLC [Member] Midwest Generation Sites
Business Acquisition, Costs Recognized Post Merger [Abstract]
BGE rate credit of $100 per residential customer				$ 113,000,000	[1]																																																																																										$ 113,000,000	[1]
Customer investment fund to invest in energy efficiency and low-income energy assistance to BGE customers				113,500,000
Contribution for renewable energy, energy efficiency or related projects in Baltimore				2,000,000
Charitable contributions at $7 million per year for 10 years				70,000,000																						35,000,000																																																																					28,000,000
State funding for offshore wind development projects				32,000,000
Miscellaneous tax benefits				(2,000,000)																																																																																											(2,000,000)
Total				328,500,000																						35,000,000																																																																					139,000,000
Business Acquisition, Costs Recognized Post Merger Footnotes [Abstract]
Business Acquisition, Equity Contribution																																																																																													66,000,000
Commercial Commitments [Abstract]
Guarantee Obligations Maximum Exposure		9,700,000,000				200,000,000										1,520,000,000	339,000,000	44,000,000	1,107,000,000	3,161,000,000	3,529,000,000			6,195,000,000																										1,477,000,000	[2]	357,000,000	832,000,000			3,529,000,000		689,000,000		228,000,000													19,000,000	9,000,000	200,000,000	200,000,000	203,000,000												22,000,000	3,000,000	178,000,000	178,000,000		260,000,000														1,000,000	9,000,000	250,000,000	250,000,000
Guarantee obligations maximum exposure next twelve months		5,029,000,000														1,217,000,000	301,000,000	0	350,000,000	3,161,000,000	0			2,349,000,000																										1,174,000,000	[2]	343,000,000	832,000,000			0				28,000,000													19,000,000	9,000,000			25,000,000												22,000,000	3,000,000				10,000,000														1,000,000	9,000,000
Guarantee obligations maximum exposure year two		300,000,000														298,000,000	2,000,000							298,000,000																										298,000,000	[2]
Guarantee obligations maximum exposure year three		6,000,000															6,000,000							0																										0	[2]
Guarantee obligations maximum exposure year four		9,000,000														5,000,000	4,000,000							5,000,000																										5,000,000	[2]
Guarantee obligations maximum exposure year five		1,000,000															1,000,000							0																										0	[2]
Guarantee obligations maximum exposure year six and beyond		4,355,000,000															25,000,000	44,000,000	757,000,000		3,529,000,000			3,543,000,000																										0	[2]	14,000,000				3,529,000,000				200,000,000															200,000,000		178,000,000														178,000,000			250,000,000																250,000,000
Commercial Commitments Footnote [Abstract]
Guarantees in support of equity investment																																																									211,000,000
Estimated net exposure for commercial transaction obligations																						463,000,000,000																																			200,000,000
Estimated total assumed for commercial transaction obligations																				3,000,000,000																																	749,000,000,000
Nuclear Insurance [Abstract]
Nuclear insurance liability limit per incident																								13,600,000,000
Required nuclear liability insurance per site																								375,000,000
Total of U.S. licensed nuclear reactors																								104
Nuclear financial protection pool value																								13,200,000,000
Cost surcharge to Price-Anderson Act nuclear incident assessment																								5.00%
Maximum assessment mandated by Price-Anderson Act per nuclear reactor for a nuclear incident																								127,300,000
Maximum annual assessment payment mandated by Price-Anderson Act for a nuclear incident																								19,000,000
Maximum liability per nuclear incident																								2,400,000,000
Nuclear industry mutual insurance company distribution to members																																																									18,500,000
Total retrospective premium obligation under insurance from a nuclear industry mutual insurance company																								287,000,000
Total nuclear property insurance coverage																								2,100,000,000
Nuclear property insurance coverage limit per individual insured																								1,250,000,000
Additional nuclear property insurance purchased under single limit blanket property																								850,000,000
Nuclear insurance property damage maximum retrospective premium obligation																								229,000,000
Maximum recovery limit from a nuclear industry mutual insurance company in the event of multiple losses																								3,200,000,000
Nuclear outage replacement power cost insurance maximum annual retrospective premium obligation																								58,000,000
Spent Nuclear Fuel Obligation [Abstract]
Cost of spent nuclear fuel disposal per kWh of net nuclear generation																								0.001
Estimate increase in nuclear ARO due to delay in DOE acceptance of spent nuclear fuel for date one																								700,000,000
Reimbursement for spent nuclear fuel costs																								712,000,000
Net reimbursement for spent nuclear fuel cost after co-owner deduction																								601,000,000
Requested SNF reimbursement costs from the DOE																								71,000,000
Requested SNF reimbursement cost owed to co-owners																								18,000,000
Department of Energy SNF one-time fee applicable to nuclear generation																								277,000,000
DOE SNF one-time fee with interest																								1,021,000,000
13-week Treasury Rate used to calculate DOE SNF one-time fee																								0.051%
LossContingencySettlementAbstract
Receivable from affiliate				2,039,000,000																				22,000,000		22,000,000																																		2,469,000,000		2,039,000,000															447,000,000		360,000,000
Guarantees Related To Indemnifications [Abstract]
Acquisition of interest in subsidiary																																																						50.00%
Sale of interest in subsidiary																																																						100.00%	49.50%
ProceedsFromDivestitureOfBusinessesNetOfCashDivested																																																							95,000,000
Accrual For Environmental Loss Contingencies [Line Items]
Accrued environmental liabilities												338,000,000	351,000,000	273,000,000	298,000,000																															56,000,000	42,000,000	0	0																				234,000,000	261,000,000	229,000,000	254,000,000													47,000,000	47,000,000	44,000,000	44,000,000																1,000,000	1,000,000	0	0
Environmental Issues - MGP Site Contingency [Abstract]
Total number of MGP sites																																																												42																	26																	13,000,000
Approved clean-up																																																												16																	16
Sites under study/remediation																																																												26																	10																	3,000,000
MGP reserve update																																																												1,000,000																	6,000,000
Environmental Issues - Water [Abstract]
Low end of range of cooling tower cost																								430,000,000
Consent decree penalty	1,000,000
Environmental loss contingencies	30,000,000																							14,000,000
Total Conemaugh Station water discharge settlement to be paid by all responsible parties																								500,000
Portion of Conemaugh Station water discharge settlement to be paid by Exelon																								200,000
Increase in accrual due to purchase accounting																							3,000,000
Increase in accrual due to an update of costs																							2,000,000
Environmental Issues - Air [Abstract]
States subject to the Cross State Air Pollution Rule																								28
Emissions allowance balance																								56,000,000
Capital Leases, Net Investment in Direct Financing Leases [Abstract]
Net investment in long-term direct financing leases		698,000,000		685,000,000																				693,000,000
Coal Rail Car Lease Proof of Claims																																																												21,000,000
Probable contingency (liability)		19,000,000																																																																																																														13,000,000
Midwest Generation's estimated environmental investigation and remediation costs																																																																																																																	9,000,000	8,000,000
Payments for operating leases																																												10,000,000
Environmental Issues - Solid and Hazardous Waste [Abstract]
DOJ potential settlement																																													90,000,000
Total cost of remediation to be shared by PRPs																																													42,000,000															42,000,000
Loss Contingency Number Of Defendants										14	15
Loss Contingency Esitmate to close site																																																																																																							6,000,000
68th Street and Sauer Dumps [Abstract]
Number of defendants in addition to BGE and Constellation Energy																																																																																																						19
Minimum estimated clean-up costs for all potentially responsible parties																																																																																																						50,000,000
Maximum estimated clean-up costs for all potentially responsible parties																																																																																														1,700,000								64,000,000
Climate Change Regulation [Abstract]
Minimum GHG emissions by stationary sources to qualify for regulation		75,000
Minimum additional GHG emissions by stationary sources after a modification		100,000
Asbestos Loss Contingency [Abstract]
Asbestos liability reserve																								90,000,000		63,000,000																																																																																						53,000,000
Asbestos liability reserve related to open claims		19,000,000																																																																																																														13,000,000
Open asbestos liability claims		224
Asbestos liability reserve related to anticipated claims		71,000,000
Increase (decrease) in the value of the asbestos liability reserve																								25,000,000
Asbestos reserve adjustment																								19,000,000
Number of claimants																																																																																														486
US Department Of Energy Settlements [Abstract]
Preacquisition contingency asset DOE settlement gain																								16,000,000
Funds received from DOE settlement																								16,000,000
FERC Settlement [Abstract]
FERC civil penalty																								135,000,000
FERC disgorgement																								110,000,000
FERC settlement recorded in operation and maintenance expense																								195,000,000
FERC settlement recorded as preacquisition contingency																								50,000,000
Dividend Payments Restrictions [Abstract]
Total of common stock and retained earnings																																																																													3,100,000,000
Continuous Power Interruption [Abstract]
Minimum number of customers ComEd can be held liable to for power interruption																																																												30,000
Number of customers affected by a major storm																																																											900,000
Number of customers proposed by the ICC that ComEd should not be granted a waiver under Continuous Power Interruption																																																											34,599
Securities Class Action Suit [Abstract]
Expected settlement amount to resolve class action suit		4,000,000
Telephone Consumer Protection Act Lawsuit [Abstract]
PossibleDefendantsNumber																																																												1,200,000
LossContingencyDamagesSought																																																																			1,500	500
Unrecorded Unconditional Purchase Obligation [Abstract]
Purchase Obligations, Due within One Year							61,000,000																							412,000,000	[3]	117,000,000	[4]	25,000,000	[5]	824,000,000	1,378,000,000	1,212,000,000	110,000,000	170,000,000		50,000,000	26,000,000																					323,000,000	72,000,000	88,000,000															590,000,000	2,000,000	179,000,000	30,000,000														783,000,000	45,000,000	129,000,000	44,000,000
Purchase Obligations, Due within Two Years							34,000,000																							367,000,000	[3]	110,000,000	[4]	13,000,000	[5]		490,000,000	1,256,000,000		131,000,000	80,000,000																							136,000,000	74,000,000	5,000,000															91,000,000	2,000,000	112,000,000	1,000,000														400,000,000	40,000,000	59,000,000	2,000,000
Purchase Obligations, Due within Three Years							32,000,000																							284,000,000	[3]	76,000,000	[4]	2,000,000	[5]		362,000,000	1,040,000,000		45,000,000																								137,000,000	76,000,000	5,000,000																2,000,000	98,000,000	1,000,000														73,000,000	34,000,000	57,000,000	5,000,000
Purchase Obligations, Due within Four Years							31,000,000																							223,000,000	[3]	25,000,000	[4]	2,000,000	[5]		250,000,000	1,044,000,000		42,000,000																								140,000,000	77,000,000	5,000,000																2,000,000	37,000,000	1,000,000															13,000,000	57,000,000	2,000,000
Purchase Obligations, Due within Five Years							26,000,000																							112,000,000	[3]	3,000,000	[4]	2,000,000	[5]		117,000,000	763,000,000		30,000,000																									83,000,000	5,000,000																2,000,000	15,000,000	1,000,000																51,000,000
Purchase Obligations, Due after Five Years							78,000,000																							414,000,000	[3]	3,000,000	[4]	32,000,000	[5]		449,000,000	3,175,000,000		86,000,000																									1,207,000,000	14,000,000																4,000,000	66,000,000	6,000,000																256,000,000
Purchase Obligations, Total							262,000,000																							1,812,000,000	[3]	334,000,000	[4]	76,000,000	[5]	824,000,000	3,046,000,000	8,490,000,000		504,000,000																								736,000,000	1,589,000,000	122,000,000															681,000,000	14,000,000	507,000,000	40,000,000														1,256,000,000	132,000,000	609,000,000	53,000,000
Unrecorded Unconditional Purchase Obligation, Additional Information [Abstract]
Percentage of ownership interest in CENG (as a percent)								50.00%	20.00%															50.01%
Operating Leases Future Minimum Payments Due Table [Abstract]
Minimum future operating lease payments due in one year		103,000,000																						49,000,000																																				13,000,000	[6]																13,000,000	[6]																12,000,000
Minimum future operating lease payments due in two years		91,000,000																						50,000,000																																				11,000,000	[6]																3,000,000	[6]																11,000,000
Minimum future operating lease payments due in three years		89,000,000																						49,000,000																																				11,000,000	[6]																3,000,000	[6]																9,000,000
Minimum future operating lease payments due in four years		82,000,000																						48,000,000																																				7,000,000	[6]																3,000,000	[6]																8,000,000
Minimum future operating lease payments due in five years		63,000,000																						40,000,000																																				2,000,000	[6]																3,000,000	[6]																7,000,000
Minimum future operating lease payments due beyond five years		398,000,000																						336,000,000																																				3,000,000	[6]																0	[6]																14,000,000
Total minimum future operating lease payments		826,000,000	[7]																					572,000,000	[7]																																			47,000,000	[6]																25,000,000	[6]																61,000,000
Future Operating Lease Payments Indefinite Periods Footnote [Abstract]
Future operating lease payments with indefinite periods due in one year																																																												1,000,000																	3,000,000																	1,000,000
Future operating lease payments with indefinite periods due in two years																																																												1,000,000
Future operating lease payments with indefinite periods due in three years																																																												1,000,000
Future operating lease payments with indefinite periods due in four years																																																												1,000,000
Future operating lease payments with indefinite periods due in five years																																																												1,000,000
Operating Leases Rent Expense [Abstract]
Lease And Rental Expense		806,000,000		930,000,000		711,000,000																		744,000,000	[8]	872,000,000	[8]	659,000,000	[8]																															15,000,000		18,000,000	18,000,000														21,000,000		27,000,000	28,000,000														11,000,000	12,000,000		15,000,000
Operating Leases Rent Expense Footnote [Abstract]
Long Term Contract For Purchase Of Electric Power Capacity																								$ 694,000,000		$ 801,000,000		$ 630,000,000

[1] Exelon made a $66 million equity contribution to BGE in the second quarter of 2012 to fund the after-tax amount of the rate credit as directed in the MDPSC order approving the merger transaction.

[2] Letters of credit (non-debt) - Exelon and certain of its subsidiaries maintain non-debt letters of credit to provide credit support for certain transactions as requested by third parties.

[3] Net capacity purchases include PPAs and other capacity contracts including those that are accounted for as operating leases. Amounts presented in the commitments represent Generation's expected payments under these arrangements at December 31, 2013, net of fixed capacity payments expected to be received by Generation under contracts to resell such acquired capacity to third parties under long-term capacity sale contracts. Expected payments include certain fixed capacity charges which may be reduced based on plant availability.

[4] The table excludes renewable energy purchases that are contingent in nature.

[5] Transmission rights purchases include estimated commitments for additional transmission rights that will be required to fulfill firm sales contracts.

[6]  Amounts related to certain real estate leases and railroad licenses effectively have indefinite payment periods. As a result, ComEd, PECO and BGE have excluded these payments from the remaining years, as such amounts would not be meaningful. ComEd's, PECO’s and BGE’s annual obligation for these arrangements, included in each of the years 2014 - 2018, was $1 million, $3 million and $1 million respectively. (c)        Includes all future lease payments on a 99 year real estate lease that expires in 2105.

[7] Excludes Generation's PPAs and other capacity contracts that are accounted for as contingent operating lease payments.

[8] Includes Generation's PPAs and other capacity contracts that are accounted for as operating leases and are reflected as net capacity purchases in the energy commitments table above. These agreements are considered contingent operating lease payments and are not included in the minimum future operating lease payments table above. Payments made under Generation's PPAs and other capacity contracts totaled $694 million, $801 million and $630 million during 2013, 2012 and 2011, respectively.