Income Taxes Effective Income Tax Rates (Tables)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Effective Income Tax Rate [Table Text Block]

For the second quarter and six months ended June 30, 2018 and 2017, our effective income tax rates from continuing operations were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Effective income tax expense (benefit) rate from continuing operations	31	%	37	%	32	%	59	%