Receivables and Financing Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2016	Apr. 30, 2016	Apr. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer Credit Card Financing Receivables		$ 80.9	$ 68.0
Consumer Credit Card Financing Receivables Percentage Current		97.00%	97.00%
Consumer Credit Card Financing Receivable Allowance For Credit Losses		$ 1.4	$ 1.0
Financing Receivables Gross Current		2.5	21.0
Financing Receivables Net Non Current		19.9	$ 41.3
Koidu Limited [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross		43.8
Provision for Loan and Lease Losses	$ 37.9
Loans and Leases Receivable, Net Amount	$ 5.9	$ 5.9

A valuation allowance for credit card financing receivables that are expected to be uncollectable.

No definition available.

Name:	tif_ConsumerCreditCardFinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	tif_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Financing receivables related to consumer credit cards.

+ References

No definition available.

+ Details

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

- Definition

Reflects the percentage of current financing receivables derived from dividing current financing receivables by total financing receivables.

+ References

No definition available.

+ Details

Name:	tif_ConsumerCreditCardFinancingReceivablesPercentageCurrent
Namespace Prefix:	tif_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Current Portion of Receivables related to financing provided to diamond mining and exploration companies.

+ References

No definition available.

+ Details

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

- Definition

Non-current portion of receivables related to financing provided to diamond mining and exploration companies.

+ References

No definition available.

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

+ Details

Name:	us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

+ Details

Name:	us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_CounterpartyNameAxis=tif_KoiduLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: