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Balance Sheet Details Restricted Cash (Policies)
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12 Months Ended |
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Dec. 31, 2014
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| Cash and Cash Equivalents [Abstract] | |
| Restricted Cash Policy [Policy Text Block] | Restricted Cash. As of December 31, 2014, we had $107.8 million in restricted cash, the majority of which was included in other long-term assets and was comprised of cash held in escrow in connection with the sale of Nextel Peru, judicial deposits in Nextel Brazil and a debt service reserve account related to Nextel Mexico's equipment financing facility. As of December 31, 2013, we had $120.5 million in restricted cash, the majority of which was included in other long-term assets and was comprised of cash held in escrow in connection with the sale of Nextel Peru, a debt service reserve account related to Nextel Mexico's equipment financing facility, judicial deposits in Nextel Brazil, purchase commitments for handsets and cash collateral supporting the lease of our corporate headquarters. |