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Stock-Based Compensation (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2012 CenturyLink	Dec. 21, 2010 Qwest Communications International Inc.	Mar. 31, 2011 Predecessor	Dec. 31, 2010 Predecessor
Stock-based compensation
Stock based compensation expense	$ 19.0		$ 18.3		$ 3.0	$ 121.0
Income tax benefit recognized, associated with stock compensation expense	7	7			1	30
Stock compensation expense as a result of accelerated vesting of stock awards				$ 63

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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