GOODWILL AND OTHER INTANGIBLES-NET

12 Months Ended

Dec. 31, 2021

Goodwill And Other Intangible Assets Net [Abstract]

Goodwill and Other Intangible Assets, Net

The following table summarizes the change in the carrying amount of goodwill for the years ended December 31, 2021 and 2020 by segment.

	December 31, 2020			Acquisitions/ Divestitures			Currency Translation Adjustment			December 31, 2021
Aerospace		$	2,378		$	21		$	—		$	2,399
Honeywell Building Technologies		3,385			20			(88)			3,317
Performance Materials and Technologies		5,255			1,019			(136)			6,138
Safety and Productivity Solutions		5,040			(32)			(47)			4,961
Corporate and All Other		—			943			(2)			941
		$	16,058		$	1,971		$	(273)		$	17,756

Other intangible assets are comprised of:

	December 31, 2021									December 31, 2020
	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
Determinable life intangibles:
Patents and technology		$	2,345		$	(1,678)		$	667		$	2,159		$	(1,595)		$	564
Customer relationships		4,045			(2,235)			1,810			3,889			(2,050)			1,839
Trademarks		356			(261)			95			327			(247)			80
Other		298			(271)			27			298			(267)			31
		7,044			(4,445)			2,599			6,673			(4,159)			2,514
Indefinite life intangibles:
Trademarks		1,014			—			1,014			1,046			—			1,046
		$	8,058		$	(4,445)		$	3,613		$	7,719		$	(4,159)		$	3,560

Intangible assets amortization expense was $465 million, $358 million and $415 million for the years ended December 31, 2021, 2020 and 2019, respectively. Estimated intangible asset amortization expense for each of the next five years approximates $310 million in 2022, $273 million in 2023, $250 million in 2024, $241 million in 2025 and $203 million in 2026.