Goodwill And Acquired Intangibles

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for the years ended December 31, 2019 and 2018 were as follows:



	Commercial Airplanes		Defense, Space & Security			Global Services			Other		Total
Balance at January 1, 2018		$992		$3,074			$1,493					$5,559
KLX acquisition	249					1,861					2,110
Other acquisitions			180			3					183
Goodwill adjustments						(12		)			(12		)
Balance at December 31, 2018		$1,241		$3,254			$3,345					$7,840
KLX acquisition adjustments						(51		)			(51		)
Acquisitions	72					188				$62	322
Dispositions						(49		)			(49		)
Goodwill adjustments			(10		)	8					(2		)
Balance at December 31, 2019		$1,313		$3,244			$3,441			$62		$8,060

As of December 31, 2019 and 2018, we had indefinite-lived intangible assets with carrying amounts of $197 and $490 relating to trade names. During 2019, we recorded an impairment of $293 within Cost of Sales, as a result of our decision to retire the Aviall brand and trade name. As of December 31, 2019, we had indefinite-lived intangible assets with a carrying amount of $202 related to in process research and development.

The gross carrying amounts and accumulated amortization of our acquired finite-lived intangible assets were as follows at December 31:



	2019				2018
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Distribution rights		$2,989		$1,262		$2,879		$1,101
Product know-how	553		354		536		324
Customer base	1,364		599		1,284		523
Developed technology	653		485		595		439
Other	280		200		218		186
Total		$5,839		$2,900		$5,512		$2,573

Amortization expense for acquired finite-lived intangible assets for the years ended December 31, 2019 and 2018 was $331 and $272. Estimated amortization expense for the five succeeding years is as follows:



	2020		2021		2022		2023		2024
Estimated amortization expense		$320		$298		$287		$259		$248

During 2019 and 2018, we acquired $563 and $1,133 of finite-lived intangible assets, of which $30 and $0 related to non-cash investing and financing transactions.