XML 79 R66.htm IDEA: XBRL DOCUMENT v3.8.0.1
Receivables - Narrative (Detail) - Finance and Financial Products [Member]
1 Months Ended 3 Months Ended
Jun. 30, 2017
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2018
CAD ($)
Jun. 30, 2017
CAD ($)
Loans and finance receivables [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Provisions for loan losses   $ 34,000,000 $ 38,000,000    
Loan charge-offs, net of recoveries   $ 35,000,000 $ 43,000,000    
Percent of loan balances evaluated collectively for impairment       98.00%  
Percent of loan balances considered to be performing       99.00%  
Percent of loan balances considered to be current as to payment status       96.00%  
Secured Revolving Credit Facility [Member] | Financial Institution Borrower [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Credit facility amount $ 1,550,000,000       $ 2,000,000,000
Expiration period of credit facility 1 year        
Expiration date of credit facility Jun. 29, 2018        
Outstanding loan balance       $ 0