CONTINGENT LIABILITIES AND OTHER MATTERS - Large Power Projects in South Africa (Details) R in Millions												1 Months Ended				9 Months Ended
	Oct. 11, 2022 USD ($)	Oct. 11, 2022 ZAR (R)	Oct. 02, 2021 USD ($)	Oct. 02, 2021 ZAR (R)	Apr. 28, 2021 USD ($) dispute	Apr. 28, 2021 ZAR (R) dispute	Feb. 22, 2021 USD ($) project	Feb. 22, 2021 ZAR (R) project	Feb. 05, 2021 USD ($)	Jul. 23, 2020 USD ($) dispute	Jul. 23, 2020 ZAR (R)	May 31, 2021 USD ($)	May 31, 2021 ZAR (R)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 ZAR (R)	Oct. 01, 2022 USD ($) project	Oct. 01, 2022 ZAR (R)	Sep. 21, 2022 USD ($)	Sep. 21, 2022 ZAR (R)	Dec. 31, 2021 USD ($)	Jun. 04, 2021 USD ($)	Jun. 04, 2021 ZAR (R)	Jul. 31, 2019 USD ($)	Jul. 31, 2019 ZAR (R)
Contingent Liabilities and Other Matters
Number of large power projects | project																2
Number of disputes | dispute										9
Other assets																$ 619,800,000				$ 675,900,000
Assets of DBT and Heat Transfer																41,200,000				$ 52,200,000
Large Power Projects
Contingent Liabilities and Other Matters
Payment for bonds									$ 6,700,000
SOUTH AFRICA | Large Power Projects
Contingent Liabilities and Other Matters
Gain contingency																56,000,000.0	R 1,000.0
Unrecorded gain contingency, current proceeding																41,000,000.0	732.6
Number of disputes					2	2	2	2		1
Litigation settlement					$ 6,000,000.0	R 82.0	$ 8,600,000	R 126.6
Estimate of possible legal claim deemed unlikely																		$ 19,600,000	R 349.6		$ 44,200,000	R 790.0
SOUTH AFRICA | Large Power Projects | Demand Bonds
Contingent Liabilities and Other Matters
Face amount of debt										$ 2,300,000
SOUTH AFRICA | Large Power Projects | Demand Bonds | MHI
Contingent Liabilities and Other Matters
Litigation settlement										1,100,000	R 18.4
Estimate of possible legal claim deemed unlikely																1,600,000	29.2
Payment for bonds			$ 23,400,000	R 418.3								$ 12,500,000	R 178.7	$ 14,300,000	R 239.6
Other assets | R																	R 327.5
Assets of DBT and Heat Transfer																$ 18,300,000
SOUTH AFRICA | Large Power Projects | Demand Bonds | MHI | Subsequent Event
Contingent Liabilities and Other Matters
Payment for bonds	$ 5,100,000	R 90.8
Interest paid	$ 700,000	R 12.5
SOUTH AFRICA | Large Power Projects | MHI April And July 2019 Claims
Contingent Liabilities and Other Matters
Estimate of possible legal claim deemed unlikely																							$ 22,800,000	R 407.2
SOUTH AFRICA | Large Power Projects | MHI Additional Claims
Contingent Liabilities and Other Matters
Estimate of possible legal claim deemed unlikely																							$ 9,900,000	R 176.2
SOUTH AFRICA | Large Power Projects | Bonds Upon Completion Of Certain Administrative Milestones | Demand Bonds
Contingent Liabilities and Other Matters
Face amount of debt										$ 4,300,000