Income Taxes	3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate for the three months ended March 31, 2016 and 2015 was 37.1% and 37.3%, respectively. The effective tax rate for 2016 and 2015 each include a $3 million charge from the write-off of deferred tax assets associated with the expiration of out-of-the-money vested stock options and the vesting of restricted stock units previously granted to our employees. As is the case with other large corporations, our tax returns are examined each year by tax authorities in the U.S. and other global taxing jurisdictions in which we have operations. The IRS examinations of our consolidated U.S. income tax returns for tax years prior to 2012 are closed to audit. Additionally, various post-2005 U.S. state and local tax returns are subject to examination. In Canada, the examination of our tax filings prior to 2009 are closed to audit, except for the pending application of legal principles to specific issues arising in earlier years. Other significant jurisdictions in which we have, or have recently completed, tax examinations include France, closed through the end of 2012, Germany closed through the end of 2011 and except for an item under appeal the U.K. is closed through the end of 2011. We have other less significant tax fillings currently subject to examination.

Income Taxes

3 Months Ended

Mar. 31, 2016

The effective tax rate for the three months ended March 31, 2016 and 2015 was 37.1% and 37.3%, respectively. The effective tax rate for 2016 and 2015 each include a $3 million charge from the write-off of deferred tax assets associated with the expiration of out-of-the-money vested stock options and the vesting of restricted stock units previously granted to our employees.

As is the case with other large corporations, our tax returns are examined each year by tax authorities in the U.S. and other global taxing jurisdictions in which we have operations. The IRS examinations of our consolidated U.S. income tax returns for tax years prior to 2012 are closed to audit. Additionally, various post-2005 U.S. state and local tax returns are subject to examination. In Canada, the examination of our tax filings prior to 2009 are closed to audit, except for the pending application of legal principles to specific issues arising in earlier years. Other significant jurisdictions in which we have, or have recently completed, tax examinations include France, closed through the end of 2012, Germany closed through the end of 2011 and except for an item under appeal the U.K. is closed through the end of 2011. We have other less significant tax fillings currently subject to examination.