v3.25.4

Summary of Significant Accounting Policies - Finance Revenues (Details) | 12 Months Ended
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Jan. 03, 2026
Minimum | Nonperforming |
Revenues |
Number of months of contractual delinquency to classify accounts as nonaccrual unless such collection is not doubtful | 3 months

X
- Definition Represents the maximum number of months of contractual delinquency to classify accounts as nonaccrual unless such collection is not doubtful. + References No definition available. + Details
Name: | txt_NumberOfMonthsOfContractualDelinquencyForAutomaticClassificationAsNonaccrualAccount
Namespace Prefix: | txt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenuesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |