Goodwill and Identifiable Intangible Assets

12 Months Ended

Dec. 31, 2022

6. Goodwill and Identifiable Intangible Assets

Goodwill

The following table provides information regarding changes in goodwill (in millions):


	Aviation Segment		Land Segment		Total
As of December 31, 2020	$	398.8	$	459.7	$	858.6
2021 acquisition (1)	—		7.5		7.5
Foreign currency translation of non-USD functional currency subsidiary goodwill	1.3		(5.5)		(4.2)
As of December 31, 2021	400.1		461.8		861.9
2022 acquisitions (1)	0.7		388.0		388.7
Foreign currency translation of non-USD functional currency subsidiary goodwill	(3.2)		(14.4)		(17.6)
As of December 31, 2022	$	397.6	$	835.3	$	1,233.0

(1)See Note 3. Acquisitions and Divestitures for additional information.

Identifiable Intangible Assets

The following table provides information about our identifiable intangible assets (in millions):


	As of December 31, 2022						As of December 31, 2021
	Gross Carrying Amount		Accumulated Amortization (1)		Net		Gross Carrying Amount		Accumulated Amortization (1)		Net
Intangible assets subject to amortization:
Customer relationships	$	509.0	$	292.6	$	216.4	$	406.5	$	261.9	$	144.6
Supplier agreements	69.0		25.0		44.0		31.9		19.5		12.4
Others	54.3		32.1		22.2		37.2		30.4		6.8
Total intangible assets subject to amortization	632.3		349.7		282.5		475.6		311.8		163.8
Intangible assets not subject to amortization:
Trademark / trade name rights	53.6		—		53.6		25.3		—		25.3
Total intangible assets	$	685.9	$	349.7	$	336.2	$	500.9	$	311.8	$	189.1

(1)Includes the impact of foreign exchange.

Intangible amortization expense for 2022, 2021 and 2020 was $43.4 million, $30.1 million and $33.1 million, respectively.

The future estimated amortization of our identifiable intangible assets is as follows (in millions):