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Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2020

Goodwill and Other Intangible Assets

6. Goodwill and Other Intangible Assets

Goodwill was $8,994 million and $6,532 million as of December 31, 2020 and 2019, respectively. The $2,462 million increase in goodwill during 2020 is primarily related to our acquisition of Advanced Disposal as discussed further in Note 18.

As discussed in Note 3, we perform our annual impairment test of goodwill balances for our reporting units using a measurement date of October 1. We will also perform interim tests if an impairment indicator exists.

See Note 20 for allocation of our goodwill by segment.

Our other intangible assets consisted of the following as of December 31 (in millions):


	Customer		Covenants		Licenses,
	and Supplier		Not-to-		Permits
	Relationships		Compete		and Other		Total
2020
Intangible assets	$	1,436	$	68	$	142	$	1,646
Less: Accumulated amortization		(497)		(46)		(79)		(622)
	$	939	$	22	$	63	$	1,024
2019
Intangible assets	$	906	$	72	$	110	$	1,088
Less: Accumulated amortization		(469)		(36)		(62)		(567)
	$	437	$	36	$	48	$	521

Amortization expense for other intangible assets was $107 million, $106 million and $101 million for 2020, 2019 and 2018, respectively. As of December 31, 2020, we had $19 million of licenses, permits and other intangible assets that are not subject to amortization because they do not have stated expirations or have routine, administrative renewal processes. Additional information related to other intangible assets acquired through business combinations is included in Note 18. As of December 31, 2020, we expect annual amortization expense related to other intangible assets to be $146 million in 2021, $125 million in 2022, $112 million in 2023, $101 million in 2024 and $93 million in 2025.