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Consolidated Statements of Income (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Operating revenue	$ 3,386	$ 3,098	$ 8,063	$ 7,504
Fuel	110	100	269	275
Purchased power	1,264	1,118	2,422	2,337
Operation and maintenance	819	803	2,450	2,272
Depreciation, decommissioning and amortization	358	316	1,058	945
Property and other taxes	71	65	217	195
Gain on sale of assets	0	0	0	(1)
Total operating expenses	2,622	2,402	6,416	6,023
Operating income	764	696	1,647	1,481
Interest income	2	2	7	5
Other income	26	33	103	103
Interest expense	(116)	(109)	(344)	(315)
Other expenses	(10)	(10)	(35)	(39)
Income before income taxes	666	612	1,378	1,235
Income tax expense	245	205	496	338
Net income	421	407	882	897
Dividends on preferred and preference stock	15	13	44	39
Net income available for common stock	$ 406	$ 394	$ 838	$ 858

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