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Stock-Based Compensation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2011 Predecessor	Dec. 31, 2010 Predecessor	Dec. 31, 2010 Predecessor	Dec. 31, 2011 CenturyLink	Dec. 31, 2012 CenturyLink
Stock-based compensation
Stock based compensation expense	$ 4		$ 123	$ 20	$ 20
Income tax benefit recognized, associated with stock compensation expense	2		31	8	8
Additional 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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