Consolidated Statements of Operations (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Revenues	$ 5,197	$ 5,291	$ 5,152
Operating Expenses
Fuel, purchased power and gas	1,668	1,758	1,716
Operation and maintenance	1,376	1,429	1,369
Depreciation and amortization	896	822	813
Taxes other than income	260	256	240
Asset (gains) losses and reserves, net	(3)	(2)	12
Total operating expenses	4,197	4,263	4,150
Operating Income	1,000	1,028	1,002
Other (Income) and Deductions
Interest expense	268	272	289
Interest income	0	(1)	0
Other income	(54)	(53)	(47)
Other expenses	45	42	56
Total Other (Income) and Deductions	259	260	298
Income Before Income Taxes	741	768	704
Income Tax Expense (Benefit)	254	282	267
Net Income	$ 487	$ 486	$ 437