Commitments and Contingencies - Environmental Matter (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2020	Apr. 30, 2020	Oct. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Estimated remediation costs, CPG preferred approach, low estimate	$ 483.0
Identified remediation plan, EPA estimated cost		$ 1,380.0
RoD design phase, settlement amount from third party			$ 165.0

The amount a third party (specifically one of the notified companies who are potentially liable for the remediation of the Lower Passaic River) agreed with the EPA to spend in engineering and design work required in advance of the clean-up of the Lower Passaic River.

No definition available.

Name:	tif_RoDDesignPhaseSettlementAmountbyThirdParty
Namespace Prefix:	tif_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant