Income Taxes	3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate for the three months ended March 31, 2015 and 2014 was 37.3% and 14.7%, respectively. The effective tax rate for 2015 includes 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. The effective tax rate for 2014 includes a net incremental tax benefit associated with the early extinguishment of debt and a benefit of $6 million from the resolution of tax examinations. As is the case with other large corporations, our tax returns are examined each year by tax authorities in the U.S., other countries and local jurisdictions in which we have operations. The Internal Revenue Service examinations of tax years prior to 2011 are closed to audit. Other than the pending application of legal principles to specific issues arising in earlier years, only post-2009 Canadian tax years are subject to examination. Other significant tax filings subject to examination include various post-2004 U.S. state and local, post-2007 German, and post-2010 French and U.K. tax filings. We have other less significant tax filings currently under examination or subject to examination.

Income Taxes

3 Months Ended

Mar. 31, 2015

The effective tax rate for the three months ended March 31, 2015 and 2014 was 37.3% and 14.7%, respectively. The effective tax rate for 2015 includes 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. The effective tax rate for 2014 includes a net incremental tax benefit associated with the early extinguishment of debt and a benefit of $6 million from the resolution of tax examinations.

As is the case with other large corporations, our tax returns are examined each year by tax authorities in the U.S., other countries and local jurisdictions in which we have operations. The Internal Revenue Service examinations of tax years prior to 2011 are closed to audit. Other than the pending application of legal principles to specific issues arising in earlier years, only post-2009 Canadian tax years are subject to examination. Other significant tax filings subject to examination include various post-2004 U.S. state and local, post-2007 German, and post-2010 French and U.K. tax filings. We have other less significant tax filings currently under examination or subject to examination.