Financial Statements of Guarantors (Details 3) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
CURRENT ASSETS
Cash and cash equivalents	$ 61	$ 87	$ 41	$ 48
Accounts receivable, less allowance	1,200	1,177
Advances to affiliates	1,823	500
Deferred income taxes, net	506	473
Other	377	320
Total current assets	3,967	2,557
Net property, plant and equipment	9,147	9,127
Goodwill	10,123	10,123
Customer relationships, net	5,358	5,822
Other intangible assets, net	1,163	1,277
Prepaid pension, post-retirement and other post-employment benefits-affiliate	4	4
Other	370	336
TOTAL ASSETS	30,132	29,246
CURRENT LIABILITIES
Current maturities of long-term debt	100	856
Notes payable-affiliates	2,654	2,023
Accounts payable	706	687
Accrued expenses and other liabilities	865	924
Advance billings and customers deposits	446	452
Total current liabilities	4,771	4,942
LONG-TERM DEBT	9,486	8,772
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred revenues	200	192
Benefit plan obligations, net	3,631	3,699
Deferred income taxes	660	494
Other	502	523
Total deferred credits and other liabilities	4,993	4,908
Stockholder's equity	10,882	10,624	10,802
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	30,132	29,246
QCII
CURRENT ASSETS
Cash and cash equivalents	12	11
Accounts receivable, less allowance	14	10
Advances to affiliates	174
Other		8
Total current assets	200	29
Other intangible assets, net	41	64
Investments in subsidiaries	14,408	14,322
Deferred income taxes, net	1,332	1,336
Prepaid pension, post-retirement and other post-employment benefits-affiliate	1,623	1,697
Other	36	37
TOTAL ASSETS	17,640	17,485
CURRENT LIABILITIES
Notes payable-affiliates	1,925	1,322
Accounts payable	10
Accounts payable - affiliates		661
Accrued expenses and other liabilities	197	178
Total current liabilities	2,132	2,161
LONG-TERM DEBT	845	849
DEFERRED CREDITS AND OTHER LIABILITIES
Benefit plan obligations, net	3,625	3,699
Other	156	152
Total deferred credits and other liabilities	3,781	3,851
Stockholder's equity	10,882	10,624
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	17,640	17,485
QSC and QCF
CURRENT ASSETS
Cash and cash equivalents	28	59	27	40
Notes receivable - affiliates	1,413	1,413
Advances to affiliates	1,842	938
Deferred income taxes, net	358	272
Total current assets	3,641	2,682
Investments in subsidiaries	12,935	13,478
Deferred income taxes, net	589	931
Other	8	7
TOTAL ASSETS	17,173	17,098
CURRENT LIABILITIES
Notes payable-affiliates	1,413	1,413
Accounts payable		1
Accrued expenses and other liabilities	27	57
Total current liabilities	1,440	1,471
LONG-TERM DEBT	1,007	1,008
DEFERRED CREDITS AND OTHER LIABILITIES
Pension, post-retirement and other post-employment benefits obligations and other - affiliates	289	270
Other	29	27
Total deferred credits and other liabilities	318	297
Stockholder's equity	14,408	14,322
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	17,173	17,098
Subsidiaries Non-Guarantors
CURRENT ASSETS
Cash and cash equivalents	21	17	14	8
Accounts receivable, less allowance	1,186	1,167
Advances to affiliates		223
Deferred income taxes, net	148	201
Other	377	321
Total current assets	1,732	1,929
Net property, plant and equipment	9,147	9,127
Goodwill	10,123	10,123
Customer relationships, net	5,358	5,822
Other intangible assets, net	1,122	1,213
Other	326	292
TOTAL ASSETS	27,808	28,506
CURRENT LIABILITIES
Current maturities of long-term debt	100	856
Notes payable-affiliates	729	701
Accounts payable	696	695
Accounts payable - affiliates	193
Accrued expenses and other liabilities	641	689
Advance billings and customers deposits	446	452
Total current liabilities	2,805	3,393
LONG-TERM DEBT	7,634	6,915
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred revenues	200	192
Benefit plan obligations, net	6
Pension, post-retirement and other post-employment benefits obligations and other - affiliates	1,330	1,423
Deferred income taxes	2,581	2,761
Other	317	344
Total deferred credits and other liabilities	4,434	4,720
Stockholder's equity	12,935	13,478
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	27,808	28,506
Eliminations
CURRENT ASSETS
Notes receivable - affiliates	(1,413)	(1,413)
Advances to affiliates	(193)	(661)
Other		(9)
Total current assets	(1,606)	(2,083)
Investments in subsidiaries	(27,343)	(27,800)
Deferred income taxes, net	(1,921)	(2,267)
Prepaid pension, post-retirement and other post-employment benefits-affiliate	(1,619)	(1,693)
TOTAL ASSETS	(32,489)	(33,843)
CURRENT LIABILITIES
Notes payable-affiliates	(1,413)	(1,413)
Accounts payable		(9)
Accounts payable - affiliates	(193)	(661)
Total current liabilities	(1,606)	(2,083)
DEFERRED CREDITS AND OTHER LIABILITIES
Pension, post-retirement and other post-employment benefits obligations and other - affiliates	(1,619)	(1,693)
Deferred income taxes	(1,921)	(2,267)
Total deferred credits and other liabilities	(3,540)	(3,960)
Stockholder's equity	(27,343)	(27,800)
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ (32,489)	$ (33,843)