CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
OPERATING REVENUES	$ 4,514	$ 4,515	$ 13,593	$ 13,553
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	1,975	1,918	5,872	5,587
Selling, general and administrative	823	1,047	2,497	2,679
Depreciation and amortization	1,097	1,135	3,297	3,375
Impairment of goodwill	0	1,100	0	1,100
Total operating expenses	3,895	5,200	11,666	12,741
OPERATING INCOME (LOSS)	619	(685)	1,927	812
OTHER INCOME (EXPENSE)
Interest expense	(325)	(329)	(981)	(970)
Other income, net	5	9	7	52
Total other income (expense)	(320)	(320)	(974)	(918)
INCOME (LOSS) BEFORE INCOME TAX EXPENSE	299	(1,005)	953	(106)
Income tax expense	111	40	369	372
Net income (loss)	$ 188	$ (1,045)	$ 584	$ (478)
BASIC AND DILUTED EARNINGS (LOSS) PER COMMON SHARE
BASIC (in dollars per share)	$ 0.33	$ (1.76)	$ 1.03	$ (0.79)
DILUTED (in dollars per share)	$ 0.33	$ (1.76)	$ 1.02	$ (0.79)
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.54	$ 0.54	$ 1.62	$ 1.62
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
BASIC (in shares)	565,965	594,587	569,472	606,104
DILUTED (in shares)	567,432	594,587	570,640	606,104