Debt Instrument, Number of Tranches

No definition available.

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Namespace Prefix:	etn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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+ Details

Name:	us-gaap_LinesOfCreditCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=etn_EuroNotes2021Due2026And2030Member
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Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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Balance Type:
Period Type:

- Details

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Period Type:

- Details

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DEBT - Narrative (Details) € in Millions	Oct. 04, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 22, 2021 USD ($)	May 17, 2021 USD ($)	Mar. 08, 2021 USD ($) tranche	Mar. 08, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 08, 2021 EUR (€) tranche
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 2,500,000,000	$ 4,500,000,000
Borrowings outstanding							$ 0
Letter of Credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity							972,000,000
Letters of credit outstanding, amount							$ 335,000,000
3.68% notes due 2023 \| Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate (as a percent)							3.68%
0.75% Euro notes due 2024 \| Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate (as a percent)							0.75%
0.70% Euro notes due 2025 \| Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate (as a percent)							0.70%
Euro Notes (2021) due 2026 and 2030 \| Notes
Debt Instrument [Line Items]
Face amount					$ 1,798,000,000				€ 1,500
Number of tranches \| tranche					2				2
Proceeds from issuance of debt					$ 1,790,000,000	€ 1,494
Debt redemption price, percentage					101.00%	101.00%
Euro Notes (2021) due 2026 and 2030 \| Notes \| Tranche One
Debt Instrument [Line Items]
Debt instrument, stated interest rate (as a percent)					0.128%		0.128%		0.128%
Face amount \| €									€ 900
Euro Notes (2021) due 2026 and 2030 \| Notes \| Tranche Two
Debt Instrument [Line Items]
Debt instrument, stated interest rate (as a percent)					0.577%		0.577%		0.577%
Face amount \| €									€ 600
364 Day Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 500,000,000	$ 500,000,000	$ 2,500,000,000			$ 500,000,000
Debt instrument, term (in years)	364 days	364 days	364 days	364 days
Commercial Paper \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 2,500,000,000		$ 2,500,000,000				2,500,000,000	$ 4,500,000,000
Line of credit, current								$ 3,372,000,000
Five Year Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 750,000,000					$ 2,000,000,000
Long-term debt, term	5 years	5 years
Four Year Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 500,000,000
Long-term debt, term		4 years