Debt Instrument, EBITDA Multiple of Trailing Twelve-Month Measurement Period

No definition available.

Name:	rmd_DebtInstrumentEBITDAMultipleOfTrailingTwelveMonthMeasurementPeriod
Namespace Prefix:	rmd_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt To Consolidated EBITDA Ratio

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Line of credit facility collateral, percentage of the company

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Uncommitted option to increase credit facility

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

+ References

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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.

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+ Details

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

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
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Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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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

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

- Definition

Amount of the required periodic payment applied to principal.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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- Details

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- Details

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Debt - Narrative (Details)		6 Months Ended
Debt - Narrative (Details)	Jun. 29, 2022 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jul. 10, 2019 USD ($)
Debt Instrument [Line Items]
Debt to consolidated EBITDA ratio		3.50
Line of credit facility collateral, maximum percentage of ownership interests held in subsidiary		10.00%
Senior notes, carrying amount		$ 500,000,000	$ 500,000,000
Outstanding debt		1,226,667,000	1,441,136,000
3.24% Senior Notes Due July 10, 2026
Debt Instrument [Line Items]
Principal amount				$ 250,000,000
Interest rate				3.24%
3.45% Senior Notes Due July 10, 2029
Debt Instrument [Line Items]
Principal amount				$ 250,000,000
Interest rate				3.45%
Senior Notes
Debt Instrument [Line Items]
Long-term debt, fair value		466,800,000	462,200,000
Revolving Credit Agreement, Term Credit Agreement, and Senior Notes
Debt Instrument [Line Items]
Outstanding debt		1,230,000,000
Revolving Credit Facility and Term Credit Agreement
Debt Instrument [Line Items]
Long-term debt, fair value		$ 730,000,000	$ 945,000,000
Revolving Credit Facility and Term Credit Agreement \| Mufg Union Bank Na and Westpac Banking Corporation
Debt Instrument [Line Items]
Interest rate on outstanding principal amount		6.30%
Revolving Credit Facility
Debt Instrument [Line Items]
Available for draw		$ 955,000,000
Revolving Credit Facility \| Mufg Union Bank Na and Westpac Banking Corporation
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,500,000,000
Uncommitted option to increase credit facility	$ 1,000,000,000
EBITDA multiple of trailing twelve-month measurement period	1.0
Revolving Credit Facility \| Mufg Union Bank Na and Westpac Banking Corporation \| Minimum
Debt Instrument [Line Items]
Commitment fees percentage rate on unused portion of credit facility		0.075%
Revolving Credit Facility \| Mufg Union Bank Na and Westpac Banking Corporation \| Maximum
Debt Instrument [Line Items]
Commitment fees percentage rate on unused portion of credit facility		0.15%
Revolving Credit Facility \| Mufg Union Bank \| ResMed Limited
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 200,000,000
Term Loan Credit Agreement
Debt Instrument [Line Items]
Principal payment	$ 5,000,000
Term Loan Credit Agreement \| Minimum \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Credit facility interest rate equal to reference rate plus	0.75%
Term Loan Credit Agreement \| Minimum \| Base Rate
Debt Instrument [Line Items]
Credit facility interest rate equal to reference rate plus	0.00%
Term Loan Credit Agreement \| Maximum \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Credit facility interest rate equal to reference rate plus	1.50%
Term Loan Credit Agreement \| Maximum \| Base Rate
Debt Instrument [Line Items]
Credit facility interest rate equal to reference rate plus	0.50%