Other Assets	12 Months Ended
	Jan. 02, 2021
Other Assets, Noncurrent Disclosure [Abstract]
Other Assets	Other AssetsOther assets includes the cash surrender value of corporate-owned life insurance policies, net of any borrowings against these policies. During the first quarter of 2020, we borrowed $377 million against the policies as we strengthened our cash position in light of disruptions caused by the COVID-19 pandemic. These borrowings were subsequently repaid and there were no outstanding borrowings against these policies at January 2, 2021. Proceeds from these borrowings and subsequent payments have been classified as financing activities in the consolidated statement of cash flows. Interest expense incurred on borrowings against corporate-owned life insurance policies is recorded as an offset with policy income.In 2019, TRU Simulation + Training Inc., a business within our Textron Systems segment, contributed assets associated with its training business into FlightSafety Textron Aviation Training LLC, a company formed by FlightSafety International Inc. and TRU to provide training solutions for Textron Aviation’s commercial business and general aviation aircraft. We have a 30% interest in this company and our investment is accounted for under the equity method of accounting. We contributed assets with a carrying value of $69 million to the company, which primarily included property, plant and equipment. In addition, $71 million of the Textron Systems segment’s goodwill was allocated to this transaction. Based on the fair value of our share of the business, we recorded a pre-tax net gain of $18 million in 2019 to cost of sales in our Consolidated Statements of Operations.