CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
OPERATING REVENUES
Operating revenues	$ 1,636	$ 1,690
Operating revenues - affiliates	581	521
Total operating revenues	2,217	2,211
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	692	698
Selling, general and administrative	270	285
Operating expenses - affiliates	248	188
Depreciation and amortization	462	498
Total operating expenses	1,672	1,669
OPERATING INCOME	545	542
OTHER (EXPENSE) INCOME
Interest expense	(118)	(116)
Interest expense - affiliates, net	(13)	(13)
Total other expense, net	(131)	(129)
Income before income tax expense	414	413
Income tax expense	167	160
NET INCOME	$ 247	$ 253