Accounting Policies Summary of Significant Accounting Policies (Tables)

3 Months Ended

Apr. 30, 2018

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)	As of April 30, 2018
Assets:
Receivables from transactions with customers, net	$	2,025
Liabilities:
Deferred gift card revenue	$	2,014