Financial Statements of Guarantors (Details 2) (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 (LOSS) INCOME	380	291	775	581
OTHER INCOME (EXPENSE)
Interest expense	(141)	(154)	(282)	(324)
Interest expense-affiliates	(63)	(30)	(128)	(34)
Interest income-affiliates			1
Net loss on early retirement of debt		(45)		(37)
Other income (expense)	(1)	2	4	3
Total other income (expense)	(205)	(227)	(405)	(392)
INCOME BEFORE INCOME TAX EXPENSE	175	64	370	189
Income tax (benefit) expense	37	27	115	75
NET INCOME	138	37	255	114
COMPREHENSIVE INCOME	140	37	258	114
QCII
OPERATING EXPENSES
Selling, general and administrative	3	1	22	3
Depreciation and amortization	11	16	23	34
Total operating expenses	14	17	45	37
OPERATING (LOSS) INCOME	(14)	(17)	(45)	(37)
OTHER INCOME (EXPENSE)
Interest expense	(12)	(25)	(25)	(64)
Interest expense-affiliates	(35)	(21)	(71)	(22)
Income from equity investments in subsidiaries	202	91	386	217
Other income (expense)	(1)	5	4	13
Total other income (expense)	154	50	294	144
INCOME BEFORE INCOME TAX EXPENSE	140	33	249	107
Income tax (benefit) expense	2	(4)	(6)	(7)
NET INCOME	138	37	255	114
COMPREHENSIVE INCOME	140	37	258	114
QSC and QCF
OPERATING REVENUES
Operating revenues	(1)
Operating revenues-affiliates	14	1	8	3
Total operating revenues	13	1	8	3
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	(1)		4
Selling, general and administrative	14	1	10	3
Total operating expenses	13	1	14	3
OPERATING (LOSS) INCOME			(6)
OTHER INCOME (EXPENSE)
Interest expense	(18)	(16)	(35)	(34)
Interest expense-affiliates	(29)	(28)	(56)	(54)
Interest income-affiliates	27	27	53	53
Income from equity investments in subsidiaries	91	15	207	60
Total other income (expense)	71	(2)	169	25
INCOME BEFORE INCOME TAX EXPENSE	71	(2)	163	25
Income tax (benefit) expense	(131)	(93)	(223)	(192)
NET INCOME	202	91	386	217
COMPREHENSIVE INCOME	202	91	386	217
Subsidiaries Non-Guarantors
OPERATING REVENUES
Operating revenues	2,684	2,736	5,344	5,461
Operating revenues-affiliates	157	100	292	214
Total operating revenues	2,841	2,836	5,636	5,675
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	1,178	1,213	2,280	2,388
Selling, general and administrative	392	442	815	922
Operating expenses-affiliates	208	151	376	302
Depreciation and amortization	669	722	1,339	1,445
Total operating expenses	2,447	2,528	4,810	5,057
OPERATING (LOSS) INCOME	394	308	826	618
OTHER INCOME (EXPENSE)
Interest expense	(111)	(113)	(222)	(226)
Interest expense-affiliates	(26)	(8)	(54)	(11)
Interest income-affiliates			1
Net loss on early retirement of debt		(45)		(37)
Other income (expense)		(3)		(10)
Total other income (expense)	(137)	(169)	(275)	(284)
INCOME BEFORE INCOME TAX EXPENSE	257	139	551	334
Income tax (benefit) expense	166	124	344	274
NET INCOME	91	15	207	60
COMPREHENSIVE INCOME	91	15	207	60
Eliminations
OPERATING REVENUES
Operating revenues-affiliates	(14)	(1)	(8)	(3)
Total operating revenues	(14)	(1)	(8)	(3)
OPERATING EXPENSES
Operating expenses-affiliates	(14)	(1)	(8)	(3)
Total operating expenses	(14)	(1)	(8)	(3)
OTHER INCOME (EXPENSE)
Interest expense-affiliates	27	27	53	53
Interest income-affiliates	(27)	(27)	(53)	(53)
Income from equity investments in subsidiaries	(293)	(106)	(593)	(277)
Total other income (expense)	(293)	(106)	(593)	(277)
INCOME BEFORE INCOME TAX EXPENSE	(293)	(106)	(593)	(277)
NET INCOME	(293)	(106)	(593)	(277)
COMPREHENSIVE INCOME	$ (293)	$ (106)	$ (593)	$ (277)