Debt Credit Facilities (Details) ¥ in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2016 CNY (¥)	Jan. 31, 2015 USD ($)	Jan. 31, 2016 USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 750.0
Short-term borrowings		$ 234.0	221.6
Tiffany Shanghai Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		111.3	99.3
Line of Credit Facility, Amount Outstanding		$ 37.6	$ 42.1
Line of Credit Facility, Interest Rate at Period End	4.72%	6.00%	4.72%
Line of Credit Facility, Maximum Borrowing Capacity	¥ 930.0		$ 141.4
Line of Credit Facility, Expiration Date	Jul. 19, 2016
Three Year Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Previous Borrowing Capacity		$ 275.0
Five Year Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Previous Borrowing Capacity		$ 275.0
Other Credit Facilities [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate During Period	3.16%	3.90%
Line of Credit Facility, Amount Outstanding		$ 103.9	102.9
Line of Credit Facility, Maximum Borrowing Capacity		113.0	126.6
Short-term borrowings		141.5	145.0
Four-year Credit Facility maturing October 2018 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			375.0
Line of Credit Facility, Expiration Date	Oct. 07, 2018
Five-year Credit Facility maturing October 2019 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			375.0
Line of Credit Facility, Expiration Date	Oct. 07, 2019
New Credit Facilities [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		651.8	667.8
Letters of Credit		5.7	5.6
Line of Credit Facility, Amount Outstanding		$ 92.5	$ 76.6
Line of Credit Facility, Interest Rate at Period End	1.54%	1.49%	1.54%
Short-term borrowings		$ 92.5	$ 76.6
Federal Funds Rate [Member] | New Credit Facilities [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, basis spread on Federal Funds Rate	0.50%		0.50%
London Interbank Offered Rate (LIBOR) [Member] | New Credit Facilities [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, basis spread on LIBOR	1.00%		1.00%