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Basis of Presentation and Summary of Significant Accounting Policies (Details 2) (Qwest Corporation, Office building, USD $) In Millions, unless otherwise specified	0 Months Ended
	Apr. 02, 2012
Qwest Corporation \| Office building
Basis of Presentation
Proceeds from sale of administrative building	$ 133
Amount of gain from sale of office building deferred	$ 16
Lease term	10 years

The gross proceeds received from the asset(s) sold in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller less the costs incurred in connection with the transaction, such as closing and deferred financing costs.

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