EATON SHAREHOLDERS' EQUITY - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	$ 4,566	$ 3,827	$ 2,911
Tax expense	(768)	(604)	(445)
Total, net of tax	3,794	$ 3,218	$ 2,462
Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total, net of tax	(14)
Gains and (losses) on net investment hedges (amount excluded from effectiveness testing) | Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	15
Tax expense	0
Total, net of tax	15
Amortization of defined benefits pensions and other postretirement benefits items | Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(55)
Tax expense	15
Total, net of tax	(41)
Gains and (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax expense	(3)
Total, net of tax	12
Gains and (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Loss | Floating-to-fixed interest rate swaps
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	13
Gains and (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Loss | Currency exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(1)
Gains and (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Loss | Commodity contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	$ 4