Income Taxes	3 Months Ended
Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate for the three months ended March 31, 2019 and 2018 was 120.8% and 26.7%, respectively. The effective tax rate for the three months ended March 31, 2019 includes a $2 million tax on the $18 million book loss from Market Exits resulting primarily from nondeductible currency write offs and basis differences. The effective tax rate for the three months ended March 31, 2019 and 2018 also includes a $2 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, as well as a $2 million and $3 million benefit, respectively, from the resolution of certain tax examinations. As is the case with other large corporations, our tax returns are examined by tax authorities in the U.S. and other global taxing jurisdictions in which we have operations. As a result, it is reasonably possible that the amount of unrecognized tax benefits will decrease in the next 12 months, and this decrease could be up to 30% of our unrecognized tax benefits. The Internal Revenue Service (IRS) examinations of our consolidated U.S. income tax returns for tax years prior to 2015 are closed to audit; however, various post-2011 U.S. state and local tax returns are still subject to examination. In Canada, the examination of our tax filings prior to 2014 are closed to audit. Other significant jurisdictions include France (closed through 2014), Germany (closed through 2012) and the U.K. (except for an item under appeal, closed through 2016). We also have other less significant tax filings currently subject to examination.

Income Taxes

The effective tax rate for the three months ended March 31, 2019 and 2018 was 120.8% and 26.7%, respectively. The effective tax rate for the three months ended March 31, 2019 includes a $2 million tax on the $18 million book loss from Market Exits resulting primarily from nondeductible currency write offs and basis differences. The effective tax rate for the three months ended March 31, 2019 and 2018 also includes a $2 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, as well as a $2 million and $3 million benefit, respectively, from the resolution of certain tax examinations.

As is the case with other large corporations, our tax returns are examined by tax authorities in the U.S. and other global taxing jurisdictions in which we have operations. As a result, it is reasonably possible that the amount of unrecognized tax benefits will decrease in the next 12 months, and this decrease could be up to 30% of our unrecognized tax benefits.

The Internal Revenue Service (IRS) examinations of our consolidated U.S. income tax returns for tax years prior to 2015 are closed to audit; however, various post-2011 U.S. state and local tax returns are still subject to examination. In Canada, the examination of our tax filings prior to 2014 are closed to audit. Other significant jurisdictions include France (closed through 2014), Germany (closed through 2012) and the U.K. (except for an item under appeal, closed through 2016). We also have other less significant tax filings currently subject to examination.