Segment and Geographic Data (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Other Information by Segment
Assets	$ 13,033	$ 13,615
Capital expenditures	480	423	270
Depreciation and amortization	383	403	393
Cessna
Other Information by Segment
Assets	2,224	2,078
Capital expenditures	93	101	47
Depreciation and amortization	102	109	106
Bell
Other Information by Segment
Assets	2,399	2,247
Capital expenditures	172	184	123
Depreciation and amortization	102	95	92
Textron Systems
Other Information by Segment
Assets	1,987	1,948
Capital expenditures	108	37	41
Depreciation and amortization	75	85	81
Industrial
Other Information by Segment
Assets	1,755	1,664
Capital expenditures	97	94	51
Depreciation and amortization	70	72	72
Finance
Other Information by Segment
Assets	2,322	3,213
Depreciation and amortization	25	32	31
Corporate
Other Information by Segment
Assets	2,346	2,465
Capital expenditures	10	7	8
Depreciation and amortization	$ 9	$ 10	$ 11