Includes items that are either isolated or temporary in nature that are excluded from the Company's segment profit measure, including restructuring charges and asset impairments.

No definition available.

+ Details

Name:	txt_SpecialCharges
Namespace Prefix:	txt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	txt_SpecialChargesLineItems
Namespace Prefix:	txt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

+ Details

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482047/420-10-45-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479823/420-10-S99-1

+ Details

Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringPlanAxis=txt_A2023RestructuringPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringCostAndReserveAxis=us-gaap_ContractTerminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=txt_IndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=txt_BellMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=txt_TextronSystemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringPlanAxis=txt_Covid19RestructuringPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Special Charges - Special Charges by Segment (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended			21 Months Ended
	Dec. 30, 2023	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022	Jan. 01, 2022
Special Charges [Line Items]
Restructuring charges		$ 39
Asset Impairments		88	$ 2	$ 13
Special charges		126	$ 0	25
Severance Costs
Special Charges [Line Items]
Restructuring charges		39
2023 Restructuring Plan
Special Charges [Line Items]
Asset Impairments		87
Special charges		126
2023 Restructuring Plan \| Severance Costs
Special Charges [Line Items]
Restructuring charges	$ 39	39
2023 Restructuring Plan \| Contract Terminations and Other
Special Charges [Line Items]
Restructuring charges		0
2023 Restructuring Plan \| Industrial
Special Charges [Line Items]
Asset Impairments		87
Special charges		108
2023 Restructuring Plan \| Industrial \| Severance Costs
Special Charges [Line Items]
Restructuring charges		21
2023 Restructuring Plan \| Industrial \| Contract Terminations and Other
Special Charges [Line Items]
Restructuring charges		0
2023 Restructuring Plan \| Bell
Special Charges [Line Items]
Asset Impairments		0
Special charges		13
2023 Restructuring Plan \| Bell \| Severance Costs
Special Charges [Line Items]
Restructuring charges		13
2023 Restructuring Plan \| Bell \| Contract Terminations and Other
Special Charges [Line Items]
Restructuring charges		0
2023 Restructuring Plan \| Textron Systems
Special Charges [Line Items]
Asset Impairments		0
Special charges		5
2023 Restructuring Plan \| Textron Systems \| Severance Costs
Special Charges [Line Items]
Restructuring charges		5
2023 Restructuring Plan \| Textron Systems \| Contract Terminations and Other
Special Charges [Line Items]
Restructuring charges		$ 0
COVID-19 Restructuring Plan
Special Charges [Line Items]
Asset Impairments				12
Special charges				25	$ 133
COVID-19 Restructuring Plan \| Severance Costs
Special Charges [Line Items]
Restructuring charges				4
COVID-19 Restructuring Plan \| Contract Terminations and Other
Special Charges [Line Items]
Restructuring charges				9
COVID-19 Restructuring Plan \| Industrial
Special Charges [Line Items]
Asset Impairments				12
Special charges				25
COVID-19 Restructuring Plan \| Industrial \| Severance Costs
Special Charges [Line Items]
Restructuring charges				4
COVID-19 Restructuring Plan \| Industrial \| Contract Terminations and Other
Special Charges [Line Items]
Restructuring charges				$ 9