v3.25.4

Debt and Credit Facilities - Narrative (Details) |  | 12 Months Ended
--- | --- | ---
Oct. 16, 2025 USD ($) extension_option | Jan. 03, 2026 USD ($) | Dec. 28, 2024 USD ($) | Dec. 30, 2023 USD ($)
Debt Instrument [Line Items] |  |  |  |
Minimum fixed charge coverage required to be maintained by subsidiary |  | 125.00% |  |
Minimum shareholders equity required to be maintained by subsidiary |  | $ 125,000,000 |  |
Cash paid to TFC to maintain compliance with covenants |  | 0 | $ 0 | $ 0
Floating Rate Junior Subordinated Notes | Finance group | Floating Rate Junior Subordinated Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount |  | $ 264,000,000 |  |
Debt instrument, maturity date |  | Feb. 15, 2067 |  |
Debt Instrument call date latest |  | Feb. 15, 2042 |  |
Debt instrument description of variable rate basis after specified term at fixed rate |  | three-month CME Term Secured Overnight Financing Rate |  |
Interest rate spread |  | 1.99661% |  |
Senior Unsecured Revolving Credit Facility Expires October 2030 | Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity | $ 1,000,000,000.0 |  |  |
Portion available for issuance of letters of credit against facility | 100,000,000 |  |  |
Borrowing capacity Textron may elect to increase to | $ 1,300,000,000 |  |  |
Number of one-year extensions | extension_option | 2 |  |  |
Extension period (in years) | 1 year |  |  |
Amount borrowed against facility |  | $ 0 |  |
Senior Unsecured Revolving Credit Facility Expires October 2027 | Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Term of facility | 5 years |  |  |
Amount borrowed against facility |  |  | 0 |
Letter of Credit | Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Outstanding letters of credit |  | $ 0 | $ 9,000,000 |

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