Asset Retirement Obligation (Tables)

12 Months Ended

Dec. 31, 2022

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Asset Retirement Obligations [Table Text Block]

The following table presents amounts recognized related to asset retirement obligations for the periods indicated (in millions):

	2022		2021
Balance at January 1	$	606	$	462
Additional liabilities incurred	97		27
Liabilities assumed in acquisition	15		96
Liabilities settled	(29)		(15)
Accretion expense	30		22
Change in estimated cash flows	35		13
Other	3		1
Balance at December 31	$	757	$	606