Asset retirement obligations (Tables)

12 Months Ended

Dec. 31, 2023

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Asset Retirement Obligations

ARO costs related to accretion of the Company’s liabilities and the depreciation of the related assets for the years ended December 31 were:

in $ millions	2023	2022	2021
Accretion	12	11	12
Depreciation	27	46	42
Total costs	39	57	54