Income Taxes (Details Textual) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
Valuation allowance			$ 191	$ 234
Reinvestments in foreign operations			1,300
Total income tax provision			$ 15	$ 36	$ 136
Effective income tax rate			3.70%	6.10%	29.20%
Unrecognized tax benefits			$ 129	$ 136	$ 130	$ 67
Interest accrued for unrecognized tax benefits			8	$ 7
Estimated loss	$ 80
Foreign
Income Tax Contingency [Line Items]
Deferred tax liability			9
State
Income Tax Contingency [Line Items]
Deferred tax liability			$ 505
Forecast
Income Tax Contingency [Line Items]
Unrecognized tax benefits, reduction due to lapse of statute of limitations		$ 4