Debt and Credit Agreements (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Short-term Debt

Commercial Paper Borrowings	September 30, 2016		December 31, 2015
ComEd	$	10	$	294
BGE	—		210
PHI Corporate	—		484
Pepco	—		64
DPL	17		105
ACE	—		5

Schedule Of Issuance Of Long Term Debt

During the nine months endedSeptember 30, 2016, the following long-term debt was issued:

Company	Type	Interest Rate		Maturity	Amount		Use of Proceeds
Exelon Corporate	Senior Unsecured Notes	2.45	%	April 15, 2021	$	300	Repay commercial paper issued by PHI and for general corporate purposes
Exelon Corporate	Senior Unsecured Notes	3.40	%	April 15, 2026	$	750	Repay commercial paper issued by PHI and for general corporate purposes
Exelon Corporate	Senior Unsecured Notes	4.45	%	April 15, 2046	$	750	Repay commercial paper issued by PHI and for general corporate purposes
Generation	Renewable Power Generation Nonrecourse Debt	4.11	%	March 31, 2035	$	150	Paydown long term debt obligations at Sacramento PV Energy and Constellation Solar Horizons and for general corporate purposes
Generation	Albany Green Energy Project Financing	LIBOR + 1.25%		November 17, 2017	$	86	Albany Green Energy biomass generation development
Generation	Energy Efficiency Project Financing	3.17	%	December 31, 2017	$	16	Funding to install energy conservation measures in Brooklyn, NY
Generation	Energy Efficiency Project Financing	3.42	%	January 31, 2018	$	13	Funding to install energy conservation measures for the Naval Station Great Lakes project
ComEd	First Mortgage Bonds, Series 120	2.55	%	June 15, 2026	$	500	Refinance maturing mortgage bonds, repay a portion of ComEd's outstanding commercial paper obligations and for general corporate purposes
ComEd	First Mortgage Bonds, Series 121	3.65	%	June 15, 2046	$	700	Refinance maturing mortgage bonds, repay a portion of ComEd's outstanding commercial paper obligations and for general corporate purposes
Generation	Energy Efficiency Project Financing	3.52	%	April 30, 2018	$	11	Funding to install energy conservation measures for the Smithsonian Zoo project
Pepco	Energy Efficiency Project Financing	3.30	%	December 15, 2017	$	2	Funding to install energy conservation measures for the DOE Germantown project
BGE	Notes	2.40	%	August 15, 2026	$	350	Redeem the $190M of outstanding preference shares and for general corporate purposes
BGE	Notes	3.50	%	August 15, 2046	$	500	Redeem the $190M of outstanding preference shares and for general corporate purposes
PECO (a)	First Mortgage Bonds	1.70	%	September 15, 2021	$	300	Refinance maturing mortgage bonds
Generation	SolGen Nonrecourse Debt	3.93	%	September 30, 2036	$	150	General corporate purposes
Generation	ExGen Texas Power Nonrecourse Debt	LIBOR + 4.25%		September 18, 2019	$	4	General corporate purposes for EGTP

Retirement and Redemptions of Current and Long-Term Debt