Financial Statements of Guarantors (Details 4) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
Financial Statements of Guarantors
Net cash provided by (used in) operating activities	$ 2,425		$ 2,017
INVESTING ACTIVITIES
Payments for property, plant and equipment and capitalized software	(1,266)		(1,121)
Changes in advances to affiliates	(1,707)		(28)
Changes in advances to affiliates—notes			28
Changes in advances to affiliates—accounts			0
Dividends paid to parent	0		(750)
Proceeds from Sale of Productive Assets	0		133
Payments for (Proceeds from) Other Investing Activities	0		0
Net cash used in investing activities	(2,973)		(1,016)
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt	752		896
Payments of long-term debt	(835)		(2,761)
Early retirement of debt costs	0		(178)
Changes in notes payable-affiliates	676		1,985
Changes in advances from affiliates	(20)		(187)
Net cash provided by (used in) financing activities	573		(995)
Net (decrease) increase in cash and cash equivalents	25		6
Cash and cash equivalents at beginning of period	87		48
Cash and cash equivalents at end of period	112		54
QCII
Financial Statements of Guarantors
Net cash provided by (used in) operating activities	(106)	[1]	(479)	[1]
INVESTING ACTIVITIES
Payments for property, plant and equipment and capitalized software	0	[1]	0	[1]
Changes in advances to affiliates	(188)	[1]
Changes in advances to affiliates—notes			(184)	[1]
Changes in advances to affiliates—accounts			0	[1]
Dividends paid to parent	0	[1]	(750)	[1]
Proceeds from Sale of Productive Assets			0	[1]
Payments for (Proceeds from) Other Investing Activities	300	[1]	750	[1]
Net cash used in investing activities	112	[1]	934	[1]
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt	0	[1]	0	[1]
Payments of long-term debt	0	[1]	(1,302)	[1]
Early retirement of debt costs			(49)	[1]
Changes in notes payable-affiliates	636	[1]	1,178	[1]
Changes in advances from affiliates	(651)	[1]	468	[1]
Net cash provided by (used in) financing activities	(15)	[1]	(455)	[1]
Net (decrease) increase in cash and cash equivalents	(9)	[1]	0	[1]
Cash and cash equivalents at beginning of period	11	[1]	0	[1]
Cash and cash equivalents at end of period	2	[1]	0	[1]
QSC and QCF
Financial Statements of Guarantors
Net cash provided by (used in) operating activities	643	[2],[3]	502	[2],[3]
INVESTING ACTIVITIES
Payments for property, plant and equipment and capitalized software	0	[2],[3]	0	[2],[3]
Changes in advances to affiliates	(1,242)	[2],[3]
Changes in advances to affiliates—notes			(280)	[2],[3]
Changes in advances to affiliates—accounts			(734)	[2],[3]
Dividends paid to parent	300	[2],[3]	(750)	[2],[3]
Proceeds from Sale of Productive Assets			0	[2],[3]
Payments for (Proceeds from) Other Investing Activities	950	[2],[3]	700	[2],[3]
Net cash used in investing activities	(292)	[2],[3]	246	[2],[3]
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt	0	[2],[3]	0	[2],[3]
Payments of long-term debt	0	[2],[3]	0	[2],[3]
Early retirement of debt costs			0	[2],[3]
Changes in notes payable-affiliates	0	[2],[3]	0	[2],[3]
Changes in advances from affiliates	(30)	[2],[3]	0	[2],[3]
Net cash provided by (used in) financing activities	(330)	[2],[3]	(750)	[2],[3]
Net (decrease) increase in cash and cash equivalents	21	[2],[3]	(2)	[2],[3]
Cash and cash equivalents at beginning of period	59	[2],[3]	40	[2],[3]
Cash and cash equivalents at end of period	80	[2],[3]	38	[2],[3]
Subsidiaries Non-Guarantors
Financial Statements of Guarantors
Net cash provided by (used in) operating activities	1,888		2,007
INVESTING ACTIVITIES
Payments for property, plant and equipment and capitalized software	(1,266)		(1,121)
Changes in advances to affiliates	223
Changes in advances to affiliates—notes			(278)
Changes in advances to affiliates—accounts			(1,061)
Dividends paid to parent	950		(700)
Proceeds from Sale of Productive Assets			133
Payments for (Proceeds from) Other Investing Activities	0		0
Net cash used in investing activities	(1,043)		(1,771)
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt	752		896
Payments of long-term debt	(835)		(1,459)
Early retirement of debt costs			(129)
Changes in notes payable-affiliates	40		685
Changes in advances from affiliates	161		479
Net cash provided by (used in) financing activities	(832)		(228)
Net (decrease) increase in cash and cash equivalents	13		8
Cash and cash equivalents at beginning of period	17		8
Cash and cash equivalents at end of period	30		16
Eliminations
Financial Statements of Guarantors
Net cash provided by (used in) operating activities	0		(13)
INVESTING ACTIVITIES
Payments for property, plant and equipment and capitalized software	0		0
Changes in advances to affiliates	(500)
Changes in advances to affiliates—notes			770
Changes in advances to affiliates—accounts			1,795
Dividends paid to parent	(1,250)		1,450
Proceeds from Sale of Productive Assets			0
Payments for (Proceeds from) Other Investing Activities	(1,250)		(1,450)
Net cash used in investing activities	(1,750)		(425)
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt	0		0
Payments of long-term debt	0		0
Early retirement of debt costs			0
Changes in notes payable-affiliates	0		122
Changes in advances from affiliates	500		(1,134)
Net cash provided by (used in) financing activities	1,750		438
Net (decrease) increase in cash and cash equivalents	0		0
Cash and cash equivalents at beginning of period	0		0
Cash and cash equivalents at end of period	$ 0		$ 0

[1] QCII is the issuer of the QCII Guaranteed Notes and is a guarantor of the QCF Guaranteed Notes.

[2] QCF is the issuer of the QCF Guaranteed Notes and is a guarantor of the QCII Guaranteed Notes.

[3] QSC is a guarantor of the QCII Guaranteed Notes.