Debt and Credit Agreements Year-End (Tables)

9 Months Ended

Sep. 30, 2013

Debt Tables [Line Items]

Schedule Of Short Term Debt [Text Block]

Type of Credit Facility		Amount (a)		Expiration Dates	Capacity Type
Exelon Corporate		(In billions)
	Syndicated Revolver	$	0.5	August 2018	Letters of credit and cash
Generation
	Syndicated Revolver		5.3	August 2018	Letters of credit and cash
	Bilateral		0.3	December 2015 and March 2016	Letters of credit and cash
	Bilateral		0.1	January 2015	Letters of credit
ComEd
	Syndicated Revolver		1.0	March 2018	Letters of credit and cash
PECO
	Syndicated Revolver		0.6	August 2018	Letters of credit and cash
BGE
	Syndicated Revolver		0.6	August 2018	Letters of credit and cash
	Total	$	8.4

• Excludes additional credit facility agreements for Generation, ComEd, PECO and BGE with aggregate commitments of $50 million, $34 million, $34 million and $5 million, respectively, arranged with minority and community banks located primarily within ComEd's, PECO's and BGE's service territories. These facilities expire on October 18, 2014 andaresolely utilized to issue letters of credit. As of September 30, 2013, letters of credit issued under these agreements for Generation, ComEd, PECO and BGEtotaled $24 million, $26 million, $21 million and $1 million, respectively.

Schedule Of Short Term Borrowing Activity [Text Block]

Commercial Paper Borrowings	September 30, 2013		December 31, 2012
Exelon Corporate	$	0	$	0
Generation		0		0
ComEd		153		0
PECO		0		0
BGE		40		0

Schedule Of Maturities Of Long Term Debt [Text Block]

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• Represents debt obligations assumed by Exelon as part of the merger on March 12, 2012 that became callable at face value on June 15, 2013. Exelon and subsidiaries of Generation (former Constellation subsidiaries) assumed intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes payable as of December 31, 2012 included in long-term debt to affiliate on Generation's Consolidated Balance Sheets and notes receivable from affiliates at Exelon Corporate, which are eliminated in consolidation on Exelon's Consolidated Balance Sheets. The third-party debt obligations were reported in Long-term Debt on Exelon's Consolidated Balance Sheets as of December 31, 2012. The debentures were redeemed and the intercompany loan agreements repaid on June 15, 2013.