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Pension Plans and Other Retirement Benefits (Tables) | 9 Months Ended
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Oct. 28, 2023
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs Related to Funded Defined Benefit Pension Plan and Unfunded Supplemental Retirement Plan | Presented below is financial information relating to TJX’s funded defined benefit pension plan (“qualified pension plan” or “funded plan”) and its unfunded supplemental pension plan (“unfunded plan”) for the periods shown:
| Funded Plan | Unfunded Plan
| Thirteen Weeks Ended | Thirteen Weeks Ended
In millions | October 28, 2023 | October 29, 2022 | October 28, 2023 | October 29, 2022
Service cost | $ | 8 |  | $ | 13 |  | $ | 1 |  | $ | 0 |
Interest cost | 18 |  | 15 |  | 2 |  | 1 |
Expected return on plan assets | (20) |  | (23) |  | — |  | — |
Amortization of net actuarial loss and prior service cost | 0 |  | 5 |  | 0 |  | 1 |
Total expense | $ | 6 |  | $ | 10 |  | $ | 3 |  | $ | 2 |
| Funded Plan | Unfunded Plan
| Thirty-Nine Weeks Ended | Thirty-Nine Weeks Ended
In millions | October 28, 2023 | October 29, 2022 | October 28, 2023 | October 29, 2022
Service cost | $ | 25 |  | $ | 36 |  | $ | 2 |  | $ | 1 |
Interest cost | 54 |  | 44 |  | 5 |  | 3 |
Expected return on plan assets | (60) |  | (67) |  | — |  | — |
Amortization of net actuarial loss and prior service cost | 0 |  | 14 |  | 1 |  | 3 |
Total expense | $ | 19 |  | $ | 27 |  | $ | 8 |  | $ | 7 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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