Receivables and Financing Arrangements (Policies)	9 Months Ended
Receivables and Financing Arrangements (Policies)	Oct. 31, 2017
Receivables [Abstract]
Receivables, Policy [Policy Text Block]	Receivables. The Company's accounts receivable, net primarily consists of amounts due from Credit Receivables (defined below), department store operators that host TIFFANY & CO. boutiques in their stores, third-party credit card issuers and wholesale customers. The Company maintains an allowance for doubtful accounts for estimated losses associated with the accounts receivable recorded on the balance sheet. The allowance is determined based on a combination of factors including, but not limited to, the length of time that the receivables are past due, management's knowledge of the customer, economic and market conditions and historical write-off experiences. For the receivables associated with Tiffany & Co. credit cards ("Credit Card Receivables"), management uses various indicators to determine whether to extend credit to customers and the amount of credit. Such indicators include reviewing prior experience with the customer, including sales and collection history, and using applicants' credit reports and scores provided by credit rating agencies. Certain customers may be granted payment terms which permit purchases above a minimum amount to be paid for in equal monthly installments over a period not to exceed 12 months (together with Credit Card Receivables, "Credit Receivables"). Credit Receivables require minimum balance payments. An account is classified as overdue if a minimum balance payment has not been received within the allotted timeframe (generally 30 days), after which internal collection efforts commence. In order for the account to return to current status, full payment on all past due amounts needs to be received by the Company. For all Credit Receivables recorded on the balance sheet, once all internal collection efforts have been exhausted and management has reviewed the account, the account balance is written off and may be sent for external collection or legal action.

Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables.