Accounting Policies Summary of Significant Accounting Policies (Tables)
3 Months Ended
Apr. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Contract with Customer, Asset and Liability [Table Text Block]
The following table provides the Company's receivables and deferred gift card revenue from transactions with customers:
(Amounts in millions)
 
April 30, 2019
 
January 31, 2019
Assets:
 
 
 
 
Receivables from transactions with customers, net
 
$
2,566

 
$
2,538

 
 
 
 
 
Liabilities:
 
 
 
 
Deferred gift card revenue
 
$
1,899

 
$
1,932