Consolidated Statements Of Cash Flows (USD $) In Millions	6 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2011 Successor [Member]	Mar. 31, 2011 Predecessor [Member]	Sep. 30, 2010 Predecessor [Member]
OPERATING ACTIVITIES
Net income	$ 364	$ 299	$ 842
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,243	451	1,402
Deferred income taxes	167	76	55
Provision for uncollectible accounts	31	17	48
Changes in current assets and current liabilities:
Accounts receivables	(31)	18	(33)
Accounts payable	(13)	(20)	40
Accounts receivable or payable-affiliates, net	(141)	93	(157)
Accrued income and other taxes	(12)	50	12
Other current assets and other current liabilities, net	40	(89)	23
Changes in other noncurrent assets and liabilities	59	(36)	(11)
Changes in other noncurrent assets and liabilities-affiliates	(40)		7
(Premium) discount amortization	(108)	3	9
Other, net	16	7	(1)
Net cash provided by operating activities	1,575	869	2,236
INVESTING ACTIVITIES
Payments for property, plant and equipment and capitalized software	(638)	(341)	(919)
Changes in interest in investments managed by Qwest Services Corporation		4	29
Changes in short-term affiliate loans	(767)
Other, net	2	2	1
Net cash used in investing activities	(1,403)	(335)	(889)
FINANCING ACTIVITIES
Payments of long-term debt	(853)	(14)	(519)
Net proceeds from issuance of long-term debt	1,200
Dividends paid to Qwest Services Corporation	(700)	(530)	(1,500)
Other, net	(13)	19	2
Net cash used in financing activities	(366)	(525)	(2,017)
Net (decrease) increase in cash and cash equivalents	(194)	9	(670)
Cash and cash equivalents at beginning of period	201	192	1,014
Cash and cash equivalents at end of period	7	201	344
Supplemental cash flow information:
Income taxes (paid) refunded (to) from Qwest Services Corporation, net	(239)	116	(663)
Interest paid (net of capitalized interest of $5, $3 and $8)	$ (290)	$ (149)	$ (462)