Commitments and Contingencies	6 Months Ended
Jun. 30, 2016
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Commitments and Contingencies Handset, Equipment and Other Commitments. We are a party to purchase agreements with various suppliers under which we have committed to purchase handsets, equipment and network services that will be used or sold in the ordinary course of business. As of June 30, 2016, we are committed to purchase $190.3 million under a handset purchase agreement with one of our handset suppliers by September 30, 2016. We do not expect that we will purchase all of the committed devices, but we have not recorded a liability for this contract because we do not believe it is probable that we will incur a loss under this handset purchase agreement. Brazil Spectrum Commitment. In December 2015, Nextel Brazil participated in a spectrum auction and was the successful bidder for 30 megahertz, or MHz, of spectrum in the 1.8 gigahertz, or GHz, band for 455.0 million Brazilian reais, or approximately $116.7 million based on foreign currency exchange rates at the time. Nextel Brazil received the license agreement on February 16, 2016. In July 2016, Nextel Brazil paid 45.5 million Brazilian reais, or approximately $14.0 million based on foreign currency exchange rates at the time, in connection with the signing of this license agreement. Under the terms of the license agreement, interest is due annually beginning in December 2016, and the remaining 409.5 million Brazilian reais is due in annual installments, beginning in December 2018. If we elect to pay the full amount of the remaining 409.5 million Brazilian reais by December 9, 2016, the Brazilian telecommunciations regulator will waive the first year of interest payments. Contingencies. Nextel Brazil has received various assessment notices from state and federal Brazilian authorities asserting deficiencies in payments related primarily to value-added taxes, excise taxes on imported equipment and other non-income based taxes. Nextel Brazil has filed various administrative and legal petitions disputing these assessments. In some cases, Nextel Brazil has received favorable decisions, which are currently being appealed by the respective governmental authority. In other cases, Nextel Brazil's petitions have been denied, and Nextel Brazil is currently appealing those decisions. Nextel Brazil also had contingencies related to certain regulatory, civil and labor-related matters as of June 30, 2016 and December 31, 2015. As of June 30, 2016 and December 31, 2015, Nextel Brazil had accrued liabilities of $67.3 million and $57.7 million, respectively, related to contingencies, of which $5.2 million and $5.4 million related to unasserted claims, respectively. We currently estimate the reasonably possible losses related to matters for which Nextel Brazil has not accrued liabilities, as they are not deemed probable, to be approximately $440.0 million as of June 30, 2016. We continue to evaluate the likelihood of probable and reasonably possible losses, if any, related to all known contingencies. As a result, future increases or decreases to our accrued liabilities may be necessary and will be recorded in the period when such amounts are determined to be probable and reasonably estimable. In addition, as of June 30, 2016, we estimated the reasonably possible losses related to potential indemnification claims in connection with the sales of Nextel Mexico and Nextel Peru for which we have not accrued liabilities, as they are not deemed probable, to be approximately $35.0 million. Legal Proceedings. We are subject to claims and legal actions that may arise in the ordinary course of business. We do not believe that any of these pending claims or legal actions will have a material effect on our business, financial condition, results of operations or cash flows.

Commitments and Contingencies

Handset, Equipment and Other Commitments.

We are a party to purchase agreements with various suppliers under which we have committed to purchase handsets, equipment and network services that will be used or sold in the ordinary course of business. As of June 30, 2016, we are committed to purchase $190.3 million under a handset purchase agreement with one of our handset suppliers by September 30, 2016. We do not expect that we will purchase all of the committed devices, but we have not recorded a liability for this contract because we do not believe it is probable that we will incur a loss under this handset purchase agreement.

Brazil Spectrum Commitment.

In December 2015, Nextel Brazil participated in a spectrum auction and was the successful bidder for 30 megahertz, or MHz, of spectrum in the 1.8 gigahertz, or GHz, band for 455.0 million Brazilian reais, or approximately $116.7 million based on foreign currency exchange rates at the time. Nextel Brazil received the license agreement on February 16, 2016. In July 2016, Nextel Brazil paid 45.5 million Brazilian reais, or approximately $14.0 million based on foreign currency exchange rates at the time, in connection with the signing of this license agreement. Under the terms of the license agreement, interest is due annually beginning in December 2016, and the remaining 409.5 million Brazilian reais is due in annual installments, beginning in December 2018. If we elect to pay the full amount of the remaining 409.5 million Brazilian reais by December 9, 2016, the Brazilian telecommunciations regulator will waive the first year of interest payments.

Contingencies.

Nextel Brazil has received various assessment notices from state and federal Brazilian authorities asserting deficiencies in payments related primarily to value-added taxes, excise taxes on imported equipment and other non-income based taxes. Nextel Brazil has filed various administrative and legal petitions disputing these assessments. In some cases, Nextel Brazil has received favorable decisions, which are currently being appealed by the respective governmental authority. In other cases, Nextel Brazil's petitions have been denied, and Nextel Brazil is currently appealing those decisions. Nextel Brazil also had contingencies related to certain regulatory, civil and labor-related matters as of June 30, 2016 and December 31, 2015.

As of June 30, 2016 and December 31, 2015, Nextel Brazil had accrued liabilities of $67.3 million and $57.7 million, respectively, related to contingencies, of which $5.2 million and $5.4 million related to unasserted claims, respectively. We currently estimate the reasonably possible losses related to matters for which Nextel Brazil has not accrued liabilities, as they are not deemed probable, to be approximately $440.0 million as of June 30, 2016. We continue to evaluate the likelihood of probable and reasonably possible losses, if any, related to all known contingencies. As a result, future increases or decreases to our accrued liabilities may be necessary and will be recorded in the period when such amounts are determined to be probable and reasonably estimable.

In addition, as of June 30, 2016, we estimated the reasonably possible losses related to potential indemnification claims in connection with the sales of Nextel Mexico and Nextel Peru for which we have not accrued liabilities, as they are not deemed probable, to be approximately $35.0 million.

Legal Proceedings.

We are subject to claims and legal actions that may arise in the ordinary course of business. We do not believe that any of these pending claims or legal actions will have a material effect on our business, financial condition, results of operations or cash flows.