Income Taxes	3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For interim tax reporting, we estimate our annual effective tax rate and apply it to our year-to-date ordinary income. Tax jurisdictions with a projected or year-to-date loss for which a tax benefit cannot be realized are excluded from the annualized effective tax rate. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. Our effective tax rate was 32.9 percent for the three months ended March 31, 2017, compared to (23.8) percent for the three months ended March 31, 2016. Our effective tax rate for the three months ended March 31, 2017, which was below the United States statutory rate, was affected by the timing and mix of pretax income earned in jurisdictions with rates lower than the United States statutory rate of (28.9) percent, the impact of foreign exchange of 12.7 percent, and other items including foreign withholding tax and nondeductible expenses of 14.1 percent. Our effective tax rate for the three months ended March 31, 2016, which was below the United States statutory rate, was affected by the timing and mix of pretax income earned in jurisdictions with rates lower than the United States statutory rate of (65.3) percent, the impact of foreign exchange of (3.6) percent, and other items including foreign withholding tax and nondeductible expenses of 10.1 percent. The Company and its subsidiaries are subject to examination by various countries' tax authorities. These examinations may lead to proposed or assessed adjustments to our taxes. In August 2016, one of our Mexican subsidiaries received a tax assessment from the Mexican tax authority (SAT) related to the audit of its 2010 tax year. The amount assessed was approximately 3 billion Mexican Pesos, which was equivalent to approximately $157 million US dollars as of the date of the assessment. The Company has filed an administrative appeal with SAT requesting that the assessment be fully nullified. We are awaiting the outcome of the appeal. Management, in consultation with external legal counsel, believes that if contested in the Mexican court system, it is more likely than not that the Company would prevail on all significant components of the assessment. Management intends to continue to vigorously contest all significant components of the assessment in the Mexican courts if they are not nullified at the administrative appeal level. We believe that our tax reserves related to uncertain tax positions are adequate at this time. There were no significant developments affecting this matter for the three months ended March 31, 2017. See note 2 for details regarding the tax effects of adopting ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting," effective January 1, 2017.

Income Taxes

For interim tax reporting, we estimate our annual effective tax rate and apply it to our year-to-date ordinary income. Tax jurisdictions with a projected or year-to-date loss for which a tax benefit cannot be realized are excluded from the annualized effective tax rate. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur.

Our effective tax rate was 32.9 percent for the three months ended March 31, 2017, compared to (23.8) percent for the three months ended March 31, 2016. Our effective tax rate for the three months ended March 31, 2017, which was below the United States statutory rate, was affected by the timing and mix of pretax income earned in jurisdictions with rates lower than the United States statutory rate of (28.9) percent, the impact of foreign exchange of 12.7 percent, and other items including foreign withholding tax and nondeductible expenses of 14.1 percent. Our effective tax rate for the three months ended March 31, 2016, which was below the United States statutory rate, was affected by the timing and mix of pretax income earned in jurisdictions with rates lower than the United States statutory rate of (65.3) percent, the impact of foreign exchange of (3.6) percent, and other items including foreign withholding tax and nondeductible expenses of 10.1 percent.

The Company and its subsidiaries are subject to examination by various countries' tax authorities. These examinations may lead to proposed or assessed adjustments to our taxes. In August 2016, one of our Mexican subsidiaries received a tax assessment from the Mexican tax authority (SAT) related to the audit of its 2010 tax year. The amount assessed was approximately 3 billion Mexican Pesos, which was equivalent to approximately $157 million US dollars as of the date of the assessment. The Company has filed an administrative appeal with SAT requesting that the assessment be fully nullified. We are awaiting the outcome of the appeal. Management, in consultation with external legal counsel, believes that if contested in the Mexican court system, it is more likely than not that the Company would prevail on all significant components of the assessment. Management intends to continue to vigorously contest all significant components of the assessment in the Mexican courts if they are not nullified at the administrative appeal level. We believe that our tax reserves related to uncertain tax positions are adequate at this time. There were no significant developments affecting this matter for the three months ended March 31, 2017.

See note 2 for details regarding the tax effects of adopting ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting," effective January 1, 2017.