Goodwill and Acquired Intangibles (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill by Segment

Changes in the carrying amount of goodwill by segment were as follows (in millions):

	Aeronautics		MFC			RMS			Space			Total
Balance at December 31, 2016	$	171	$	2,260		$	6,748		$	1,585		$	10,764
Other	—		5			36			2			43
Balance at December 31, 2017	171		2,265			6,784			1,587			10,807
Other	—		(3		)	(33		)	(2		)	(38		)
Balance at December 31, 2018	$	171	$	2,262		$	6,751		$	1,585		$	10,769

The Gross Carrying Amounts and Accumulated Amortization of Acquired Intangible Assets

The gross carrying amounts and accumulated amortization of our acquired intangible assets consisted of the following (in millions):

	2018							2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-Lived:
Customer programs	$	3,184	$	(735	)	$	2,449	$	3,184	$	(503	)	$	2,681
Customer relationships	344		(199		)	145		352		(140		)	212
Other	53		(40		)	13		71		(54		)	17
Total finite-lived intangibles	3,581		(974		)	2,607		3,607		(697		)	2,910
Indefinite-Lived:
Trademark	887		—			887		887		—			887
Total acquired intangibles	$	4,468	$	(974	)	$	3,494	$	4,494	$	(697	)	$	3,797

The Gross Carrying Amounts and Accumulated Amortization of Acquired Intangible Assets

The gross carrying amounts and accumulated amortization of our acquired intangible assets consisted of the following (in millions):

	2018							2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-Lived:
Customer programs	$	3,184	$	(735	)	$	2,449	$	3,184	$	(503	)	$	2,681
Customer relationships	344		(199		)	145		352		(140		)	212
Other	53		(40		)	13		71		(54		)	17
Total finite-lived intangibles	3,581		(974		)	2,607		3,607		(697		)	2,910
Indefinite-Lived:
Trademark	887		—			887		887		—			887
Total acquired intangibles	$	4,468	$	(974	)	$	3,494	$	4,494	$	(697	)	$	3,797