Intangible Assets

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

Intangible assets consisted of:

	As of March 31, 2022						As of December 31, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
License agreements	$	295	$	203	$	92	$	298	$	193	$	105
Customer relationships	253		204		49		257		204		53
Other	49		36		13		51		36		15
Total	$	597	$	443	$	154	$	606	$	433	$	173
Unamortized Intangible Assets
Goodwill	$	1,096					$	1,108
Trademarks	$	552					$	551

For the three months ended March 31, 2022 and 2021, amortization expense related to amortizable intangible assets was approximately $16 million and $18 million, respectively. Based on our amortizable intangible assets at March 31, 2022, we expect amortization expense of approximately $30 million for the remainder of 2022, $27 million for 2023, $23 million for 2024, $16 million for 2025, $15 million for 2026 and $12 million for 2027, excluding effects of currency exchange rates.