Quarterly report pursuant to Section 13 or 15(d)

Securitization of Receivables - Summary of Certain Transactions with Securitization Trusts (Detail)

v3.4.0.3
Securitization of Receivables - Summary of Certain Transactions with Securitization Trusts (Detail) - Securitization Trust [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]    
Gains on securitizations $ 5 $ 3
Purchase of receivables securitized 141 60
Proceeds from securitizations 146 63
Cash received from residual and servicing assets 1 1
Residual Assets [Member]    
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]    
Residual and servicing assets included in Other Assets $ 11 $ 9