Variable Interest Entities - Summary of Assets and Liabilities of Consolidated Secured Financing VIEs (Detail) - USD ($) $ in Millions		Jun. 30, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Receivables held for sale	[1],[2]	$ 1,346	$ 5,674
Long-term debt		3,071	4,340
Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Receivables held for sale		428	750
Total, Consolidated Assets		428	750
Other liabilities		(6)	(11)
Long-term debt		191	404
Total, Consolidated Liabilities		$ 185	$ 393

[1] At June 30, 2017 and December 31, 2016, receivables held for sale includes $428 million and $750 million, respectively, of closed-end real estate secured receivables which are part of a collateralized funding transaction. These receivables will be sold when they are contractually released as collateral under the public trust and become available for sale. See Note 10, "Variable Interest Entities," for further discussion of our collateralized funding transactions.

[2] At June 30, 2017 and December 31, 2016, contractually delinquent real estate secured receivables held for sale includes $172 million and $235 million, respectively, that are in the process of foreclosure.