Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2019

Variable Interest Entity [Abstract]

Assets and Liabilities of Variable Interest Entity [Table Text Block]

The table below shows the carrying amounts and classification of the consolidated VIEs’ assets and liabilities included in the consolidated financial statements of Exelon, Generation, PHI and ACE as of December 31, 2019 and 2018. The assets, except as noted in the footnotes to the table below, can only be used to settle obligations of the VIEs. The liabilities, except as noted in the footnotes to the table below, are such that creditors, or beneficiaries, do not have recourse to the general credit of Exelon, Generation, PHI and ACE.

	December 31, 2019								December 31, 2018
	Exelon(a)		Generation		PHI(a)		ACE		Exelon		Generation		PHI		ACE
Cash and cash equivalents	$	163	$	163	$	—	$	—	$	414	$	414	$	—	$	—
Restricted cash and cash equivalents	88		85		3		3		66		62		4		4
Accounts receivable, net
Customer	151		151		—		—		146		146		—		—
Other	39		39		—		—		23		23		—		—
Unamortized energy contract asset (b)	23		23		—		—		25		25		—		—
Inventories, net
Materials and supplies	227		227		—		—		212		212		—		—
Other current assets	32		31		1		—		52		49		3		—
Total current assets	723		719		4		3		938		931		7		4
Property, plant and equipment, net (c)	6,022		6,022		—		—		6,188		6,188		—		—
Nuclear decommissioning trust funds	2,741		2,741		—		—		2,351		2,351		—		—
Unamortized energy contract asset (b)	250		250		—		—		274		274		—		—
Other noncurrent assets	89		73		16		14		258		232		26		19
Total noncurrent assets	9,102		9,086		16		14		9,071		9,045		26		19
Total assets	$	9,825	$	9,805	$	20	$	17	$	10,009	$	9,976	$	33	$	23
Long-term debt due within one year	$	544	$	523	$	21	$	20	$	87	$	66	$	21	$	18
Accounts payable	106		106		—		—		96		96		—		—
Accrued expenses	70		70		—		—		73		72		1		1
Unamortized energy contract liabilities	8		8		—		—		15		15		—		—
Other current liabilities	3		3		—		—		3		3		—		—
Total current liabilities	731		710		21		20		274		252		22		19
Long-term debt	527		504		23		21		1,072		1,025		47		40
Asset retirement obligations (d)	2,128		2,128		—		—		2,165		2,165		—		—
Unamortized energy contract liabilities	1		1		—		—		1		1		—		—
Other noncurrent liabilities	89		89		—		—		42		42		—		—
Total noncurrent liabilities	2,745		2,722		23		21		3,280		3,233		47		40
Total liabilities	$	3,476	$	3,432	$	44	$	41	$	3,554	$	3,485	$	69	$	59

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(a) Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.

(b) These are unrestricted assets to Exelon and Generation.

(c) Exelon's and Generation's balances include unrestricted assets of $20 million and $43 million as of December 31, 2019 and 2018, respectively.

(d)

Exelon's and Generation's balances include liabilities with recourse of $3 million and $5 million as of December 31, 2019 and 2018, respectively.

Schedule of Variable Interest Entities

The following table presents summary information about Exelon and Generation’s significant unconsolidated VIE entities:

	December 31, 2019						December 31, 2018
	Commercial Agreement VIEs		Equity Investment VIEs		Total		Commercial Agreement VIEs		Equity Investment VIEs		Total
Total assets(a)	$	636	$	443	$	1,079	$	597	$	472	$	1,069
Total liabilities(a)	33		227		260		37		222		259
Exelon's ownership interest in VIE(a)	—		191		191		—		223		223
Other ownership interests in VIE(a)	604		25		629		560		27		587
Registrants’ maximum exposure to loss:
Carrying amount of equity method investments	—		—		—		—		223		223

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(a)

These items represent amounts on the unconsolidated VIE balance sheets, not in Exelon’s or Generation’s Consolidated Balance Sheets. These items are included to provide information regarding the relative size of the unconsolidated VIEs.