Goodwill And Acquired Intangibles (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Goodwill By Reportable Segment

Changes in the carrying amount of goodwill for the years ended December 31, 2020 and 2019 were as follows:

	Commercial Airplanes	Defense, Space & Security	Global Services	Other	Total
Balance at January 1, 2019	$1,241	$3,229	$3,345	$25	$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	$3,219	$3,441	$87	$8,060
Goodwill adjustments	3	5	13		21
Balance at December 31, 2020	$1,316	$3,224	$3,454	$87	$8,081

Schedule Of Finite-Lived Intangible Assets

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

	2020		2019
	Gross Carrying Amount	Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization
Distribution rights	$2,812	$1,427	$2,989	$1,262
Product know-how	553	384	553	354
Customer base	1,373	672	1,364	599
Developed technology	626	502	653	485
Other	303	238	280	200
Total	$5,667	$3,223	$5,839	$2,900

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated amortization expense for the five succeeding years is as follows:

	2021	2022	2023	2024	2025
Estimated amortization expense	$284	$245	$234	$220	$196