The following table summarizes Devon’s other expenses (income) presented in the accompanying consolidated comprehensive statements of earnings.


	Year Ended December 31,
	2023		2022			2021
Estimated future obligation under a performance guarantee	$	—	$	(144	)	$	(18	)
Ukraine charitable pledge		—		20			—
Asset retirement obligation accretion		29		25			28
Severance and other non-income tax refunds		—		(5	)		(39	)
Other		9		9			(14	)
Total	$	38	$	(95	)	$	(43	)

Devon has guaranteed performance through 2026 for a minimum volume commitment associated with assets divested in 2018. Due to improved commodity prices, market conditions, and performance by the purchaser of the assets, the purchaser was able to fully satisfy the performance obligation due in 2023 and 2022, as well as reimburse Devon for shortfall payments previously made on the purchasers’ behalf in 2021 and 2020. Additionally, at March 31, 2022, Devon reduced the estimated future exposure of the performance guarantee. The effect of these cash collections and liability revisions resulted in a $144 million benefit in 2022.

During 2022, Devon paid approximately $20 million for humanitarian relief for the Ukrainian people and surrounding countries supporting refugees.

During 2022 and 2021, Devon received severance and other non-income tax refunds of $5 million and $39 million, respectively, related to prior periods.