XML 59 R46.htm IDEA: XBRL DOCUMENT v3.20.2
Credit Risk (Details) - USD ($)
$ in Millions
6 Months Ended 9 Months Ended
Jun. 30, 2019
Sep. 30, 2020
Dec. 31, 2019
Concentration Risk [Line Items]      
Debt Instrument, Fair Value Disclosure   $ 342 $ 390
Ford And Affiliates [Member] | Accounts Receivable [Member] | Credit Concentration Risk [Member]      
Concentration Risk [Line Items]      
Entity-wide revenue, major customer, percentage 12.00% 14.00%  
Nissan\Renault [Member] | Accounts Receivable [Member] | Credit Concentration Risk [Member]      
Concentration Risk [Line Items]      
Entity-wide revenue, major customer, percentage 13.00% 12.00%  
Fair Value Measured at Net Asset Value Per Share [Member]      
Concentration Risk [Line Items]      
Investments, Fair Value Disclosure   $ 15 $ 3