Debt and Credit Agreements Quarter-End (Tables)

3 Months Ended

9 Months Ended

Mar. 31, 2012

Sep. 30, 2011

Debt Tables [Abstract]

Commercial paper and credit facility borrowings outstanding

Type of Credit Facility		Amount (a)		Expiration Dates	Capacity Type
Exelon Corporate		(In billions)
	Syndicated Revolver	$	2.00	October 2013 to March 2016	Letters of credit and cash
	Bilateral		1.56	September 2013 to December 2014	Letters of credit and cash
Generation
	Syndicated Revolver		5.30	March 2016	Letters of credit and cash
	Bilateral		0.30	December 2015 and March 2016	Letters of credit and cash
ComEd
	Syndicated Revolver		1.00	March 2017	Letters of credit and cash
PECO
	Syndicated Revolver		0.60	March 2016	Letters of credit and cash
BGE
	Syndicated Revolver		0.60	March 2015	Letters of credit and cash
	Total	$	11.36

Issuance of Long-Term Debt

Company	Type	Interest Rate	Maturity		Amount	Use of Proceeds
ComEd	First Mortgage Bonds	1.625%	January 15, 2014	$	600	Used as an interim source of liquidity for January 2011 contribution for Exelon-sponsored pension plans in which ComEd participates and for other general corporate purposes.

Company	Type	Interest Rate		Maturity	Amount
ComEd	First Mortgage Bond Series 98	6.15	%	March 15, 2012		$	450

Company	Type	Interest Rate	Maturity	Amount	Use of Proceeds
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Retirement of Long-Term Debt

Company	Type	Interest Rate		Maturity	Amount
Generation	Kennett Square Capital Lease	7.83	%	September 20, 2020		$	1