Income Taxes	9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The effective income tax rate of 33.7% for the third quarter of 2016 was higher than the 2015 third quarter rate of 28.8%. The tax rates for both the third quarter of 2016 and 2015 were benefited primarily by the non-taxability of certain income items. The tax rate for the third quarter of 2016 was higher compared to the same period in 2015 due to a decrease in investments in tax credit projects related to alternative energy and research and development initiatives. On a year-to-date basis, the 2016 tax rate of 33.4% was higher than the 2015 tax rate of 32.0%. The year-to-date tax rates for 2016 and 2015 were similarly impacted by the above-discussed permanent items. Net deferred tax assets were approximately $170 million at September 30, 2016 and $203 million at December 31, 2015, which included a $4 million valuation allowance at each respective reporting date for certain acquired net operating loss carryforwards included in our acquisition of the remaining interests in a less significant subsidiary. We evaluate deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of September 30, 2016.

Income Taxes

9 Months Ended

Sep. 30, 2016

INCOME TAXES

The effective income tax rate of 33.7% for the third quarter of 2016 was higher than the 2015 third quarter rate of 28.8%. The tax rates for both the third quarter of 2016 and 2015 were benefited primarily by the non-taxability of certain income items. The tax rate for the third quarter of 2016 was higher compared to the same period in 2015 due to a decrease in investments in tax credit projects related to alternative energy and research and development initiatives. On a year-to-date basis, the 2016 tax rate of 33.4% was higher than the 2015 tax rate of 32.0%. The year-to-date tax rates for 2016 and 2015 were similarly impacted by the above-discussed permanent items.

Net deferred tax assets were approximately $170 million at September 30, 2016 and $203 million at December 31, 2015, which included a $4 million valuation allowance at each respective reporting date for certain acquired net operating loss carryforwards included in our acquisition of the remaining interests in a less significant subsidiary. We evaluate deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of September 30, 2016.