CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
OPERATING REVENUES
Operating revenues	$ 2,683	$ 2,736	$ 5,344	$ 5,461
Operating revenues-affiliates	157	100	292	214
Total operating revenues	2,840	2,836	5,636	5,675
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	1,177	1,213	2,284	2,388
Selling, general and administrative	409	444	847	928
Operating expenses-affiliates	194	150	368	299
Depreciation and amortization	680	738	1,362	1,479
Total operating expenses	2,460	2,545	4,861	5,094
OPERATING INCOME	380	291	775	581
OTHER INCOME (EXPENSE)
Interest expense	(141)	(154)	(282)	(324)
Interest expense-affiliates	(63)	(30)	(128)	(34)
Net loss on early retirement of debt		(45)		(37)
Other income (expense)	(1)	2	5	3
Total other income (expense)	(205)	(227)	(405)	(392)
INCOME BEFORE INCOME TAX EXPENSE	175	64	370	189
Income tax expense	37	27	115	75
NET INCOME	$ 138	$ 37	$ 255	$ 114