Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Fair Value and Carrying Value of Financial Assets and Liabilities (Details

v3.19.1
Fair Value Measurements - Summary of Fair Value and Carrying Value of Financial Assets and Liabilities (Details - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Fair Value [Member] | Level 3 [Member] | Credit Facilities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities $ 283 $ 259
Fair Value [Member] | Level 3 [Member] | Non-recourse Debt [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities 828 835
Fair Value [Member] | Level 3 [Member] | Government Receivables [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 463 487
Fair Value [Member] | Level 3 [Member] | Commercial Receivables [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 449 443
Fair Value [Member] | Level 3 [Member] | Investments [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 178 170
Fair Value [Member] | Level 3 [Member] | Securitization Residual Assets [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 77 71
Fair Value [Member] | Level 2 [Member] | Convertible Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities 153 139
Carrying Value [Member] | Level 3 [Member] | Credit Facilities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities 283 259
Carrying Value [Member] | Level 3 [Member] | Non-recourse Debt [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities 831 852
Carrying Value [Member] | Level 3 [Member] | Government Receivables [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 464 497
Carrying Value [Member] | Level 3 [Member] | Commercial Receivables [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 454 447
Carrying Value [Member] | Level 3 [Member] | Investments [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 178 170
Carrying Value [Member] | Level 3 [Member] | Securitization Residual Assets [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 77 71
Carrying Value [Member] | Level 2 [Member] | Convertible Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities $ 151 $ 152