EATON SHAREHOLDERS' EQUITY - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain on sale of businesses	$ 24	$ 617	$ 221
Income before income taxes	2,911	2,896	1,746
Income tax benefit (expense)	(445)	(750)	(331)
Total reclassifications for the period	2,462	$ 2,144	$ 1,410
Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period	(82)
Actuarial loss and prior service cost | Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(116)
Income tax benefit (expense)	27
Total reclassifications for the period	(89)
Gains and (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax benefit (expense)	(2)
Total reclassifications for the period	7
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	9
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)
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	$ 4