Income Taxes (Details Textuals) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Examination [Line Items]
Actual tax rates	47.60%	13.40%
U.S. Tax Act discrete tax (benefit) charge	$ 18
Increase in effective tax rate	43.40%
Earliest Year [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Open tax years by major tax jurisdiction	2016