Receivables, net - Nonaccrual Receivables (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Nonaccrual receivables:
Criteria for nonaccrual status (Minimum days contractually delinquent)		90 days
Total nonaccrual receivables	[1],[2]	$ 669	$ 1,533
Nonaccrual loans carried at lower of amortized cost of fair value less cost to sell but less than 90 days delinquent		501	627
Real Estate Secured [Member]
Nonaccrual receivables:
Nonaccrual real estate secured receivables carried at lower amortized cost or fair value		187	417
Real estate secured [Member]
Nonaccrual receivables:
Total nonaccrual receivables	[2],[3]	283	1,024
Nonaccrual receivables held for sale [Member]
Nonaccrual receivables:
Total nonaccrual receivables	[2],[4]	$ 386	$ 509

[1] Nonaccrual receivables do not include receivables totaling $501 million and $627 million at December 31, 2015 and December 31, 2014, respectively, which are less than 90 days contractually delinquent and not accruing interest.

[2] The receivable balances included in this table reflect the principal amount outstanding on the loan net of any charge-off recorded in accordance with our existing charge-off policies but exclude any basis adjustments to the loan such as unearned income, unamortized deferred fees and costs on originated loans, purchase accounting fair value adjustments and premiums or discounts on purchased loans. Additionally, the balances in this table related to receivables which have been classified as held for sale have been reduced by the lower of amortized cost or fair value adjustment recorded as well as the credit loss reserves associated with these receivables prior to the transfer.

[3] At December 31, 2015 and December 31, 2014, nonaccrual real estate secured receivables held for investment include $187 million and $417 million, respectively, of receivables that are carried at the lower of amortized cost or fair value of the collateral less cost to sell.

[4] For a discussion of the movements between the components of nonaccrual receivables, see Note 7, "Receivables Held for Sale," which includes discussion of the expansion of our receivable sales program in the second quarter of 2015.