SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Movement in Valuation and qualifying accounts
Balance at Beginning of Period	$ 95.0		$ 106.4		$ 91.8
Charged to Costs and Expenses	50.2		42.0		49.9
Charged to Other Accounts	0		27.3		0
Deductions	60.5	[1]	80.7	[1]	35.3	[1]
Balance at End of Period	84.7		95.0		106.4
Fully reserved claims, terminated contracts			48
Customers
Movement in Valuation and qualifying accounts
Balance at Beginning of Period	41.2		36.2		30.8
Charged to Costs and Expenses	31.0		27.0		28.7
Charged to Other Accounts	0		2.8		0
Deductions	25.1		24.8		23.3
Balance at End of Period	47.1		41.2		36.2
All Other
Movement in Valuation and qualifying accounts
Balance at Beginning of Period	53.8		70.2		61.0
Charged to Costs and Expenses	19.2		15.0		21.2
Charged to Other Accounts	0		24.5	[2]	0
Deductions	35.4	[2]	55.9	[3]	12.0
Balance at End of Period	37.6		53.8		70.2
Southern California Edison Company
Movement in Valuation and qualifying accounts
Write-off on termination of agreement	$ 23

[1] Accounts written off, net.

[2] In 2010, SCE recorded a reserve against an uncollectible receivable related to contract termination negotiations. During 2011, the $23 million was written-off.

[3] EMG filed bankruptcy claims in the amount of $48 million related to the contracts terminated with Lehman Brothers through the termination provisions of its master netting agreements with a Lehman Brothers subsidiary. In 2010, EMG sold its bankruptcy claims.