Intangible Assets

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets consisted of:



	As of March 31, 2020						As of December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
License agreements	$	257	$	112	$	145	$	241	$	108	$	133
Customer relationships	250		169		81		255		165		90
Other	50		26		24		50		25		25
Total	$	557	$	307	$	250	$	546	$	298	$	248

Unamortized Intangible Assets
Goodwill	$	1,069					$	1,101
Trademarks	$	544					$	550

For the three months ended March 31, 2020 and 2019, amortization expense related to amortizable intangible assets was approximately $13 million and $17 million, respectively. Based on the Company’s amortizable intangible assets at March 31, 2020, the Company expects amortization expense of approximately $47 million for the remainder of 2020, $53 million for 2021, $32 million for 2022, $24 million for 2023, $21 million for 2024 and $16 million for 2025, excluding effects of currency exchange rates.