Other corporate expense-net.

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- Definition

Pension And Other Postretirement Benefits Cost (Reversal of Cost), Additional Reconciliation

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of interest income (expense) classified as operating.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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BUSINESS SEGMENT INFORMATION - Business Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended	15 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Mar. 31, 2025
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	$ 6,377	$ 5,943
Other segment items	3,930	3,725
Restructuring program charges	(18)	(63)	$ (202)	$ (220)
Total income before income taxes	1,177	1,001
Income tax expense	212	179
Net income	965	822
Less net income for noncontrolling interests	(1)	(1)
Net income attributable to Eaton ordinary shareholders	964	821
Electrical Americas
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	3,010	2,690
Electrical Global
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	1,610	1,500
Aerospace
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	979	871
Vehicle
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	617	724
eMobility
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	162	158
Operating segments
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	6,377	5,943
Other segment items	4,855	4,572
Segment operating profit (loss)	1,522	1,371
Operating segments \| Electrical Americas
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	3,010	2,690
Other segment items	2,106	1,905
Segment operating profit (loss)	904	785
Restructuring program charges	(1)	(7)		(13)
Operating segments \| Electrical Global
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	1,610	1,500
Other segment items	1,310	1,226
Segment operating profit (loss)	300	274
Restructuring program charges	(14)	(24)		(102)
Operating segments \| Aerospace
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	979	871
Other segment items	753	670
Segment operating profit (loss)	226	201
Restructuring program charges	0	(8)		(9)
Operating segments \| Vehicle
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	617	724
Other segment items	521	608
Segment operating profit (loss)	96	116
Restructuring program charges	(2)	(24)		(42)
Operating segments \| eMobility
Segment Reporting Information, Profit (Loss) [Abstract]
Net sales	162	158
Other segment items	166	162
Segment operating profit (loss)	(4)	(4)
Restructuring program charges	(1)	0		(26)
Corporate
Segment Reporting Information, Profit (Loss) [Abstract]
Intangible asset amortization expense	(106)	(106)
Interest expense - net	(33)	(30)
Pension and other postretirement benefits income	5	12
Restructuring program charges	(1)	0		$ (30)
Other expense - net	$ (193)	$ (184)