XML 33 R46.htm IDEA: XBRL DOCUMENT v3.20.1
Debt - Asset-Backed Debt Narrative (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Mar. 31, 2020
Jan. 31, 2020
Mar. 31, 2020
Asset-Backed Debt      
Debt Instrument [Line Items]      
Secured debt, carrying value $ 13,000   $ 13,000
Asset Backed Notes      
Debt Instrument [Line Items]      
Revolving period     2 years
2019 ABS Financing Facility      
Debt Instrument [Line Items]      
Repayments of debt   $ 1,300  
Revolving period     1 year
Amount drawn from credit facilities 1,300    
Debt outstanding $ 3,300   $ 3,300
Secured Debt | Asset Backed Notes      
Debt Instrument [Line Items]      
Repayments of debt     $ 979