Corporate expenses and other, net.

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The aggregate financial services revenue and operating interest income earned during the reporting period.

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Operating profit for all operating segments before income taxes.

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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.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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The net amount of operating interest income (expense).

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Segment and Geographic Data - Revenue by segments and reconciliation of segment profit to income from continuing operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Revenues
Total revenues	$ 3,750	$ 3,200	$ 3,726	$ 3,296	$ 4,017	$ 3,484	$ 3,604	$ 3,093	$ 13,972	$ 14,198	$ 13,788
Reconciliation of segment profit to income from continuing operations before income taxes
Special charges	(73)				(55)	(25)	(13)	(37)	(73)	(130)	(123)
Gain on business disposition		444							444
Income from continuing operations before income taxes									1,384	762	876
Operating Segment
Segment Profit (Loss)
Segment Profit	397	245	346	279	360	295	295	219	1,267	1,169	1,309
Corporate
Reconciliation of segment profit to income from continuing operations before income taxes
Corporate expenses and other, net	(12)	(29)	(51)	(27)	(44)	(30)	(31)	(27)	(119)	(132)	(172)
Special charges											(1)
Manufacturing group \| Reconciling Items
Reconciliation of segment profit to income from continuing operations before income taxes
Interest expense, net for Manufacturing group	(34)	(32)	(35)	(34)	(38)	(37)	(36)	(34)	(135)	(145)	(138)
Textron Aviation
Reconciliation of segment profit to income from continuing operations before income taxes
Special charges										(28)	(35)
Textron Aviation \| Manufacturing group
Revenues
Total revenues	1,552	1,133	1,276	1,010	1,391	1,154	1,171	970	4,971	4,686	4,921
Textron Aviation \| Manufacturing group \| Operating Segment
Segment Profit (Loss)
Segment Profit	170	99	104	72	120	93	54	36	445	303	389
Bell
Reconciliation of segment profit to income from continuing operations before income taxes
Special charges										(23)	(5)
Bell \| Manufacturing group
Revenues
Total revenues	827	770	831	752	983	812	825	697	3,180	3,317	3,239
Bell \| Manufacturing group \| Operating Segment
Segment Profit (Loss)
Segment Profit	108	113	117	87	114	106	112	83	425	415	386
Textron Systems
Reconciliation of segment profit to income from continuing operations before income taxes
Special charges										(21)	(62)
Textron Systems \| Manufacturing group
Revenues
Total revenues	345	352	380	387	489	458	477	416	1,464	1,840	1,756
Textron Systems \| Manufacturing group \| Operating Segment
Segment Profit (Loss)
Segment Profit	37	29	40	50	37	40	42	20	156	139	186
Industrial
Reconciliation of segment profit to income from continuing operations before income taxes
Special charges										(58)	(20)
Industrial \| Manufacturing group
Revenues
Total revenues	1,008	930	1,222	1,131	1,139	1,042	1,113	992	4,291	4,286	3,794
Industrial \| Manufacturing group \| Operating Segment
Segment Profit (Loss)
Segment Profit	73	1	80	64	83	49	82	76	218	290	329
Finance
Revenues
Finance Revenue	18	15	17	16	15	18	18	18	66	69	78
Finance \| Operating Segment
Segment Profit (Loss)
Segment Profit	$ 9	$ 3	$ 5	$ 6	$ 6	$ 7	$ 5	$ 4	$ 23	$ 22	$ 19