Annual report pursuant to Section 13 and 15(d)

Our Portfolio - Analysis of Portfolio by Type of Obligor and Credit Quality (Parenthetical) (Detail)

v3.8.0.1
Our Portfolio - Analysis of Portfolio by Type of Obligor and Credit Quality (Parenthetical) (Detail)
$ in Millions
 12 Months Ended
Dec. 31, 2017
USD ($)
Transactions
Financing Receivable, Recorded Investment [Line Items]  
Total financing receivable $ 993
Number of transactions | Transactions 135
Financial receivable outstanding, Average Remaining Balance $ 11
Total aggregate remaining balance 52
Maximum [Member]  
Financing Receivable, Recorded Investment [Line Items]  
Financial receivable outstanding, Average Remaining Balance 1
Investment Grade By Independent Rating Agency [Member]  
Financing Receivable, Recorded Investment [Line Items]  
Total financing receivable 11
U.S. Federal Government [Member]  
Financing Receivable, Recorded Investment [Line Items]  
Total financing receivable 400
State, Local, Institutions [Member]  
Financing Receivable, Recorded Investment [Line Items]  
Total financing receivable 239
Commercial Investment Grade [Member]  
Financing Receivable, Recorded Investment [Line Items]  
Total financing receivable 464
Financial receivable outstanding, Average Remaining Balance 9
Commercial Investment Grade [Member] | Residential Solar Loan [Member] | Subsidiaries Of SunPower Corporation [Member]  
Financing Receivable, Recorded Investment [Line Items]  
Total financing receivable $ 314