XML 177 R124.htm IDEA: XBRL DOCUMENT v3.20.1
Note 18 - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Balance as of January 1 $ 57 $ 61
Tax positions related to prior years:    
Additions 1 1
Reductions (1) (5)
Settlements with taxing jurisdictions (3)  
Balance as of December 31 $ 54 $ 57