CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
OPERATING REVENUES	$ 4,541	$ 4,525	$ 9,079	$ 9,038
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	1,962	1,873	3,897	3,669
Selling, general and administrative	831	814	1,674	1,632
Depreciation and amortization	1,093	1,123	2,200	2,240
Total operating expenses	3,886	3,810	7,771	7,541
OPERATING INCOME	655	715	1,308	1,497
OTHER INCOME (EXPENSE)
Interest expense	(325)	(325)	(656)	(641)
Other income	(7)	4	2	43
Total other income (expense)	(332)	(321)	(654)	(598)
INCOME BEFORE INCOME TAX EXPENSE	323	394	654	899
Income tax expense	130	125	258	332
Net income	$ 193	$ 269	$ 396	$ 567
BASIC AND DILUTED EARNINGS PER COMMON SHARE
BASIC (in dollars per share)	$ 0.34	$ 0.45	$ 0.69	$ 0.93
DILUTED (in dollars per share)	$ 0.34	$ 0.44	$ 0.69	$ 0.92
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.54	$ 0.54	$ 1.08	$ 1.08
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
BASIC (in shares)	567,915	604,302	571,225	611,862
DILUTED (in shares)	569,032	605,602	572,244	613,338