Impairment	6 Months Ended
	Jun. 30, 2023
Restructuring and Related Activities [Abstract]
Impairment	ImpairmentWe did not recognize any material impairment expense during the 2023 Period. During the 2022 Period, we reversed $63 million in impairment originally recognized in 2021 when our Stork and AMECO businesses were classified as held for sale, due primarily to remeasurement under held and used impairment criteria, for which CTA balances are excluded from carrying value.