Income Taxes	6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate for the three months ended June 30, 2015 and 2014 was 25.0% and 33.5%, respectively, and the effective tax rate for the six months ended June 30, 2015 and 2014 was 29.8% and 28.2%, respectively. The effective tax rate for the three and six months ended June 30, 2015 includes a $20 million benefit resulting from the disposition of Imagitas. The effective tax rate for the six months ended June 30, 2015 also 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. The effective tax rate for six months ended June 30, 2014 includes a benefit of $6 million from the resolution of tax examinations and incremental tax benefit associated with the early extinguishment of debt. 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

6 Months Ended

Jun. 30, 2015

The effective tax rate for the three months ended June 30, 2015 and 2014 was 25.0% and 33.5%, respectively, and the effective tax rate for the six months ended June 30, 2015 and 2014 was 29.8% and 28.2%, respectively. The effective tax rate for the three and six months ended June 30, 2015 includes a $20 million benefit resulting from the disposition of Imagitas. The effective tax rate for the six months ended June 30, 2015 also 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. The effective tax rate for six months ended June 30, 2014 includes a benefit of $6 million from the resolution of tax examinations and incremental tax benefit associated with the early extinguishment of debt.

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.