Financial Statements of Guarantors (Details 3) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Mar. 31, 2011
CURRENT ASSETS
Cash and cash equivalents	$ 54	$ 48	$ 70	$ 424
Accounts receivable, less allowance	1,237	1,201
Advances to affiliates	770	742
Deferred income taxes, net	549	559
Other	334	265
Total current assets	2,944	2,815
Net property, plant and equipment	9,117	9,461
Goodwill	10,123	10,123
Customer relationships, net	6,059	6,788
Other intangible assets, net	1,355	1,587
Other	390	381
TOTAL ASSETS	29,988	31,155
CURRENT LIABILITIES
Current maturities of long-term debt	1,407	117
Accounts payable	765	973
Accounts payable-affiliates, net		394
Notes payable-affiliates	1,985
Dividends payable - affiliates		200
Accrued expenses and other liabilities		1,011
Accrued expenses and other-affiliates	1,109
Advance billings and customer deposits	433	400
Total current liabilities	5,699	3,095
LONG-TERM DEBT	8,849	12,179
DEFERRED CREDITS AND OTHER LIABILITIES
Benefit plan obligations, net	3,102	3,198
Deferred income taxes, net	746	630
Other	707	777
Total deferred credits and other liabilities	4,555	4,605
STOCKHOLDER'S EQUITY	10,885	11,276	11,693
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	29,988	31,155
QCII
CURRENT ASSETS
Accounts receivable, less allowance	38	15
Accounts receivable-affiliates, net		211
Advances to affiliates		184
Other	24
Total current assets	62	410
Other intangible assets, net	77	126
Investments in subsidiaries	14,429	14,856
Deferred income taxes, net	1,103	1,102
Prepaid pension, post-retirement and other post-employment benefits-affiliate	2,748	2,851
Other	41	36
TOTAL ASSETS	18,460	19,381
CURRENT LIABILITIES
Current maturities of long-term debt	550
Current debt-affiliates		122
Accounts payable	2	4
Accounts payable-affiliates, net	262	360
Notes payable-affiliates	1,300
Dividends payable - affiliates		200
Accrued expenses and other liabilities	273	272
Accrued expenses and other-affiliates		1
Total current liabilities	2,387	959
LONG-TERM DEBT	889	2,767
DEFERRED CREDITS AND OTHER LIABILITIES
Benefit plan obligations, net	3,102	3,198
Pension, post-retirement and other post-employment benefits obligations and other-affiliates	1,032	1,031
Other	165	150
Total deferred credits and other liabilities	4,299	4,379
STOCKHOLDER'S EQUITY	10,885	11,276
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	18,460	19,381
QSC and QCF
CURRENT ASSETS
Cash and cash equivalents	38	40	60	183
Accounts receivable, less allowance		2
Accounts receivable-affiliates, net		336
Notes receivable-affiliates	1,413
Advances to affiliates	549	1,694
Deferred income taxes, net	380	438
Other		19
Total current assets	2,380	2,529
Investments in subsidiaries	13,863	13,999
Deferred income taxes, net	983	1,390
Prepaid pension, post-retirement and other post-employment benefits-affiliate	76	76
Other	7	7
TOTAL ASSETS	17,309	18,001
CURRENT LIABILITIES
Current debt-affiliates		1,413
Accounts payable		19
Accounts payable-affiliates, net	38	42
Notes payable-affiliates	1,413
Accrued expenses and other liabilities	36	40
Accrued expenses and other-affiliates		62
Total current liabilities	1,487	1,576
LONG-TERM DEBT	1,008	1,009
DEFERRED CREDITS AND OTHER LIABILITIES
Pension, post-retirement and other post-employment benefits obligations and other-affiliates	353	344
Deferred income taxes, net		223
Other	32	31
Total deferred credits and other liabilities	385	598
STOCKHOLDER'S EQUITY	14,429	14,818
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	17,309	18,001
Subsidiaries Non-Guarantors
CURRENT ASSETS
Cash and cash equivalents	16	8	10	241
Accounts receivable, less allowance	1,199	1,184
Accounts receivable-affiliates, net		36
Advances to affiliates	521	400
Deferred income taxes, net	169	121
Other	310	259
Total current assets	2,215	2,008
Net property, plant and equipment	9,117	9,461
Goodwill	10,123	10,123
Customer relationships, net	6,059	6,788
Other intangible assets, net	1,278	1,461
Deferred income taxes, net		117
Prepaid pension, post-retirement and other post-employment benefits-affiliate	960	955
Other	342	338
TOTAL ASSETS	30,094	31,251
CURRENT LIABILITIES
Current maturities of long-term debt	857	117
Accounts payable	763	950
Accounts payable-affiliates, net		23
Notes payable-affiliates	685
Dividends payable - affiliates		310
Accrued expenses and other liabilities	800	700
Accrued expenses and other-affiliates		192
Advance billings and customer deposits	433	400
Total current liabilities	3,538	2,692
LONG-TERM DEBT	6,952	8,403
DEFERRED CREDITS AND OTHER LIABILITIES
Pension, post-retirement and other post-employment benefits obligations and other-affiliates	2,399	2,507
Deferred income taxes, net	2,832	3,016
Other	510	596
Total deferred credits and other liabilities	5,741	6,119
STOCKHOLDER'S EQUITY	13,863	14,037
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	30,094	31,251
Eliminations
CURRENT ASSETS
Accounts receivable-affiliates, net		(583)
Notes receivable-affiliates	(1,413)
Advances to affiliates	(300)	(1,536)
Other		(13)
Total current assets	(1,713)	(2,132)
Investments in subsidiaries	(28,292)	(28,855)
Deferred income taxes, net	(2,086)	(2,609)
Prepaid pension, post-retirement and other post-employment benefits-affiliate	(3,784)	(3,882)
TOTAL ASSETS	(35,875)	(37,478)
CURRENT LIABILITIES
Current debt-affiliates		(1,535)
Accounts payable-affiliates, net	(300)	(31)
Notes payable-affiliates	(1,413)
Dividends payable - affiliates		(310)
Accrued expenses and other liabilities		(1)
Accrued expenses and other-affiliates		(255)
Total current liabilities	(1,713)	(2,132)
DEFERRED CREDITS AND OTHER LIABILITIES
Pension, post-retirement and other post-employment benefits obligations and other-affiliates	(3,784)	(3,882)
Deferred income taxes, net	(2,086)	(2,609)
Total deferred credits and other liabilities	(5,870)	(6,491)
STOCKHOLDER'S EQUITY	(28,292)	(28,855)
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ (35,875)	$ (37,478)