Derivative Instruments and Fair Value Measurements (Details 2) (USD $) In Millions	Jul. 02, 2011	Jan. 01, 2011
Manufacturing Group [Member] \| Carrying Value [Member]
Carrying value of financial instruments not recorded at fair value
Long-term debt, excluding leases	$ (2,219)	$ (2,172)
Manufacturing Group [Member] \| Estimated Fair Value [Member]
Carrying value of financial instruments not recorded at fair value
Long-term debt, excluding leases	(2,776)	(2,698)
Finance Group [Member]
Carrying value of financial instruments not recorded at fair value
Debt	(2,499)	(3,660)
Finance Group [Member] \| Carrying Value [Member]
Carrying value of financial instruments not recorded at fair value
Finance receivables held for investment, excluding leases	2,878	3,345
Finance Group [Member] \| Estimated Fair Value [Member]
Carrying value of financial instruments not recorded at fair value
Finance receivables held for investment, excluding leases	2,639	3,131
Debt	$ (2,442)	$ (3,528)

Carrying value of financial instruments not recorded at fair value.

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- Definition

Finance receivables held for investment, excluding leases.

+ Details

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Namespace Prefix:	txt
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Long-term debt, excluding leases.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13476-108611

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant