During the fourth quarter of each year, the Company assesses its goodwill and indefinite-lived intangibles assigned to each of its reporting units for impairment by either performing a qualitative assessment or a quantitative analysis. No events or circumstances were noted in the first six months of 2025 requiring additional assessment or testing.

A summary of the components in the carrying amount of goodwill as of June 30, 2025 and December 31, 2024 is as follows:


(in millions)	Fuel Systems		Aftermarket		Total
Gross goodwill balance, December 31, 2024	$	60	$	524	$	584

Accumulated impairment losses	—		(113)		(113)
Net goodwill balance, December 31, 2024	$	60	$	411	$	471
Goodwill during the period:
Translation adjustment	8		26		34
Net goodwill balance, June 30, 2025	$	68	$	437	$	505


		June 30, 2025						December 31, 2024
(in millions)	Estimated useful lives (years)	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Amortized intangible assets:
Patented and unpatented technology	14 - 15	$	155	$	60	$	95	$	144	$	51	$	93
Customer relationships	14 - 15	272		131		141		259		118		141
Total amortized intangible assets		427		191		236		403		169		234
Unamortized trade names		151		—		151		140		—		140
Total other intangible assets		$	578	$	191	$	387	$	543	$	169	$	374