Goodwill and Other Identifiable Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying Amount of Goodwill Attributable to Each Reportable Segment

Goodwill
($ in millions)	Performance Coatings			Industrial Coatings			Total
January 1, 2018		$3,104			$838			$3,942
Acquisitions, including purchase accounting adjustments	248			(13		)	235
Foreign currency impact	(86		)	(21		)	(107		)
December 31, 2018		$3,266			$804			$4,070
Acquisitions, including purchase accounting adjustments	166			230			396
Foreign currency impact	10			(6		)	4
December 31, 2019		$3,442			$1,028			$4,470

Identifiable Intangible Assets with Finite Lives

Identifiable Intangible Assets
	December 31, 2019							December 31, 2018
($ in millions)	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Indefinite-Lived Identifiable Intangible Assets
Trademarks		$1,167		$—			$1,167		$1,140		$—			$1,140
Definite-Lived Identifiable Intangible Assets
Acquired technology		$710		($549	)		$161		$648		($515	)		$133
Customer-related	1,578		(885		)	693		1,396		(798		)	598
Trade names	210		(111		)	99		190		(96		)	94
Other	51		(40		)	11		44		(37		)	7
Total Definite Lived Intangible Assets		$2,549		($1,585	)		$964		$2,278		($1,446	)		$832
Total Identifiable Intangible Assets		$3,716		($1,585	)		$2,131		$3,418		($1,446	)		$1,972

The Company’s identifiable intangible assets with definite lives are being amortized over their estimated useful lives. Aggregate amortization expense was $136 million, $143 million and $129 million in 2019, 2018 and 2017, respectively.

($ in millions)	2020		2021		2022		2023		2024
Estimated future amortization expense		$135		$120		$115		$105		$85