CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING REVENUES
Operating revenues	$ 1,690	$ 1,723
Operating revenues-affiliates	521	436
Total operating revenues	2,211	2,159
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	698	645
Selling, general and administrative	285	269
Operating expenses-affiliates	188	162
Depreciation and amortization	498	530
Total operating expenses	1,669	1,606
OPERATING INCOME	542	553
OTHER INCOME (EXPENSE)
Interest expense	(116)	(108)
Interest expense-affiliate	(13)	(16)
Other income	0	1
Total other income (expense)	(129)	(123)
INCOME BEFORE INCOME TAX EXPENSE	413	430
Income tax expense	160	166
NET INCOME	$ 253	$ 264