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Our Portfolio - Summary of Anticipated Maturity Dates of Financing Receivables and Investments and Weighted Average Yield (Detail)

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Our Portfolio - Summary of Anticipated Maturity Dates of Financing Receivables and Investments and Weighted Average Yield (Detail)
$ in Millions
 9 Months Ended
Sep. 30, 2015
USD ($)
Receivables [Abstract]  
Financing Receivables, payment due total $ 736
Financing Receivables, payment due in less than 1 year 0
Financing Receivables, payment due in 1-5 years 146
Financing Receivables, payment due in 5-10 years 39
Financing Receivables, payment due in more than 10 years $ 551
Financing Receivables, weighted average yield total 5.50%
Financing Receivables, weighted average yield in less than 1 year 0.00%
Financing Receivables, weighted average yield in 1-5 years 6.20%
Financing Receivables, weighted average yield in 5-10 years 5.30%
Financing Receivables, weighted average yield in more than 10 years 5.30%
Investments, payment due total $ 28
Investments, payment due in less than 1 year 0
Investments, payment due in 1-5 years 13
Investments, payment due in 5-10 years 1
Investments, payment due in more than 10 years $ 14
Investments, weighted average yield total 4.90%
Investments, weighted average yield in less than 1 year 0.00%
Investments, weighted average yield in 1-5 years 5.70%
Investments, weighted average yield in 5-10 years 4.70%
Investments, weighted average yield in more than 10 years 4.40%