Loans and Interest Receivable - Loans and Interest Receivables by FICO Score (Details) - Consumer Receivables - USD ($) $ in Millions |
Dec. 31, 2017 |
Dec. 31, 2016 |
---|---|---|
Financing Receivable, Recorded Investment [Line Items] | ||
Consumer loans and interest receivable | $ 6,401 | $ 4,996 |
Greater Than 760 | ||
Financing Receivable, Recorded Investment [Line Items] | ||
Consumer loans and interest receivable | 832 | 665 |
680-759 | ||
Financing Receivable, Recorded Investment [Line Items] | ||
Consumer loans and interest receivable | 2,439 | 1,938 |
600-679 | ||
Financing Receivable, Recorded Investment [Line Items] | ||
Consumer loans and interest receivable | 2,378 | 1,840 |
Less Than 599 | ||
Financing Receivable, Recorded Investment [Line Items] | ||
Consumer loans and interest receivable | $ 752 | $ 553 |