Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]

Changes in our goodwill balances for the nine months ended September 30, 2018 were as follows:



(dollars in millions)	Balance as of January 1, 2018		Goodwill Resulting from Business Combinations		Foreign Currency Translation and Other			Balance as of September 30, 2018
Otis	$	1,737	$	6	$	(42	)	$	1,701
UTC Climate, Controls & Security	10,009		1		(237		)	9,773
Pratt & Whitney	1,511		58		(2		)	1,567
UTC Aerospace Systems	14,650		—		(35		)	14,615
Total Segments	27,907		65		(316		)	27,656
Eliminations and other	3		20		—			23
Total	$	27,910	$	85	$	(316	)	$	27,679

Intangible Assets Disclosure [Table Text Block]

Identifiable intangible assets are comprised of the following:



	September 30, 2018					December 31, 2017
(dollars in millions)	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Amortized:
Service portfolios	$	2,181	$	(1,604	)	$	2,178	$	(1,534	)
Patents and trademarks	362		(232		)	399		(233		)
Collaboration intangible assets	4,413		(573		)	4,109		(384		)
Customer relationships and other	13,493		(4,413		)	13,352		(4,100		)
	20,449		(6,822		)	20,038		(6,251		)
Unamortized:
Trademarks and other	2,074		—			2,096		—
Total	$	22,523	$	(6,822	)	$	22,134	$	(6,251	)

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following is the expected amortization of intangible assets for the years 2018 through 2023, which reflects the pattern of expected economic benefit on certain aerospace intangible assets.



(dollars in millions)	Remaining 2018		2019		2020		2021		2022		2023
Amortization expense	$	222	$	877	$	875	$	904	$	924	$	920