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

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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 Information - Reconciliation of segment profit to income from continuing operations before income taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Revenues
Total revenues	$ 3,726	$ 3,604	$ 7,022	$ 6,697
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Special charges	0	(13)	0	(50)
Income from continuing operations before income taxes	260	215	478	336
Operating Segment
Segment Profit
Segment Profit	346	295	625	514
Corporate
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Corporate expenses and other, net	(51)	(31)	(78)	(58)
Textron Aviation
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Special charges		(11)		(22)
Textron Systems
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Special charges		2		1
Industrial
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Special charges		(4)		(29)
Finance
Revenues
Financial Services Revenues	17		33
Finance \| Operating Segment
Segment Profit
Segment Profit	5	5	11	9
Manufacturing group \| Reconciling Items
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Interest expense, net for Manufacturing group	(35)	(36)	(69)	(70)
Manufacturing group \| Textron Aviation
Revenues
Total revenues	1,276	1,171	2,286	2,141
Manufacturing group \| Textron Aviation \| Operating Segment
Segment Profit
Segment Profit	104	54	176	90
Manufacturing group \| Bell
Revenues
Total revenues	831	825	1,583	1,522
Manufacturing group \| Bell \| Operating Segment
Segment Profit
Segment Profit	117	112	204	195
Manufacturing group \| Textron Systems
Revenues
Total revenues	380	477	767	893
Manufacturing group \| Textron Systems \| Operating Segment
Segment Profit
Segment Profit	40	42	90	62
Manufacturing group \| Industrial
Revenues
Total revenues	1,222	1,113	2,353	2,105
Manufacturing group \| Industrial \| Operating Segment
Segment Profit
Segment Profit	80	82	144	158
Finance group \| Finance
Revenues
Financial Services Revenues	$ 17	$ 18	$ 33	$ 36