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Impact of Derivative Financial Instruments on Statements of Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 10,288	$ 79,066	$ (39,775)
Intercompany balances, primarily debt and related interest | Fair Value Hedges | Selling, General and Administrative Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	4,788	(2,674)	1,207
Intercompany receivable | Economic Hedges For Which Hedge Accounting Was Not Elected | Selling, General and Administrative Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	3,257	18,823	0
Diesel fuel contracts | Economic Hedges For Which Hedge Accounting Was Not Elected | Cost Of Sales, Including Buying And Occupancy Costs
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	(9,780)	1,373	7,946
Intercompany billings in TJX International, primarily merchandise related: | Economic Hedges For Which Hedge Accounting Was Not Elected | Cost Of Sales, Including Buying And Occupancy Costs
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	2,652	1,137	(3,042)
International lease liabilities | Economic Hedges For Which Hedge Accounting Was Not Elected | Cost Of Sales, Including Buying And Occupancy Costs
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	(1,113)	0	0
Merchandise purchase commitments: | Economic Hedges For Which Hedge Accounting Was Not Elected | Cost Of Sales, Including Buying And Occupancy Costs
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 10,484	$ 60,407	$ (45,886)

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959

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