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Financial Instruments - Impact of Derivative Financial Instruments on Statements of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 129	$ 108	$ (74)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of sales, including buying and occupancy costs, Selling, general and administrative expenses	Cost of sales, including buying and occupancy costs, Selling, general and administrative expenses	Cost of sales, including buying and occupancy costs, Selling, general and administrative expenses
Intercompany balances, primarily debt | Fair value hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 12	$ 36	$ (60)
Diesel fuel contracts | Economic hedges for which hedge accounting was not elected:
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	55	43	(6)
Intercompany billings in TJX International, primarily merchandise related: | Economic hedges for which hedge accounting was not elected:
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	(9)	5	(4)
Merchandise purchase commitments: | Economic hedges for which hedge accounting was not elected:
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 71	$ 24	$ (4)

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 https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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- Definition

Indicates line item in statement of income or comprehensive income that includes gain (loss) from derivative.

+ 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 https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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- Definition

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+ References

No definition available.

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