XML 92 R56.htm IDEA: XBRL DOCUMENT v3.19.3
Debt - Asset-Backed Debt Narrative (Detail)
1 Months Ended 2 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2019
USD ($)
May 31, 2019
USD ($)
May 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2019
USD ($)
Agreement
Oct. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Debt Instrument [Line Items]              
Principal Amount Issued             $ 1,510,000,000
Asset-Backed Debt              
Debt Instrument [Line Items]              
Secured debt, carrying value       $ 8,800,000,000 $ 8,800,000,000    
Asset Backed Notes              
Debt Instrument [Line Items]              
Debt revolving period         2 years    
Principal Amount Issued       2,244,000,000 $ 2,244,000,000    
2018 ABS Financing Facility              
Debt Instrument [Line Items]              
Repayments of debt   $ 540,000,000          
2019 ABS Financing Facility              
Debt Instrument [Line Items]              
Debt revolving period         1 year    
Repayments of debt $ 1,500,000,000   $ 671,000,000        
Debt outstanding       250,000,000 $ 250,000,000    
Number of loan agreements | Agreement         2    
2019 ABS Financing Facility Entered Into September 2016 and May 2017              
Debt Instrument [Line Items]              
Debt revolving period         2 years    
Senior asset-backed notes | Asset Backed Notes              
Debt Instrument [Line Items]              
Repayments of debt       $ 956,000,000 $ 2,300,000,000    
Subsequent Event | Senior and Junior Asset Backed Notes | Asset Backed Notes, October 2019              
Debt Instrument [Line Items]              
Principal Amount Issued           $ 1,600,000,000