Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

No definition available.

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- Definition

Area code of city

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No definition available.

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- Definition

Region code of country

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No definition available.

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- Definition

End date of current fiscal year in the format --MM-DD.

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No definition available.

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- Definition

Boolean flag that is true only for a form used as an annual report.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Indicates whether any of the financial statement period in the filing include a restatement due to error correction.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Section 240
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- Definition

Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.

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No definition available.

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- Definition

This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.

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No definition available.

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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No definition available.

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Period Type:	duration

- Definition

Boolean flag that is true only for a form used as a transition report.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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No definition available.

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- Definition

Documents incorporated by reference.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Address Line 1 such as Attn, Building Name, Street Name

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No definition available.

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- Definition

Name of the City or Town

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No definition available.

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- Definition

ISO 3166-1 alpha-2 country code.

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No definition available.

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- Definition

Code for the postal or zip code

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No definition available.

+ Details

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Balance Type:	na
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- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
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- Definition

Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.

+ References

No definition available.

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- Definition

Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.

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No definition available.

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- Definition

Indicate if registrant meets the emerging growth company criteria.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
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-Section 12
-Subsection b-2

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- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

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- Definition

Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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- Definition

Two-character EDGAR code representing the state or country of incorporation.

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No definition available.

+ Details

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- 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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- Definition

Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 405

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- Definition

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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- Definition

Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Data Type:	xbrli:booleanItemType
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- Definition

Indicates that the company is a Smaller Reporting Company (SRC).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
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-Subsection b-2

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- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
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- Definition

Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

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No definition available.

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- Definition

Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 405

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- References

+ Details

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- Definition

Local phone number for entity.

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No definition available.

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- Definition

Title of a 12(b) registered security.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Name of the Exchange on which a security is registered.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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- Definition

Trading symbol of an instrument as listed on an exchange.

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No definition available.

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Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Jun. 30, 2026	Aug. 12, 2026	Dec. 31, 2025
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jun. 30, 2026
Current Fiscal Year End Date	--06-30
Document Transition Report	false
Entity File Number	001-38932
Entity Registrant Name	AMCOR PLC
Entity Incorporation, State or Country Code	Y9
Entity Tax Identification Number	98-1455367
Entity Address, Address Line One	83 Tower Road North
Entity Address, City or Town	Warmley, Bristol
Entity Address, Country	GB
Entity Address, Postal Zip Code	BS30 8XP
Country Region	44
City Area Code	117
Local Phone Number	9753200
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 19.3
Entity Common Stock, Shares Outstanding		462,345,690
Documents Incorporated by Reference	Certain information required for Part III of this Annual Report on Form 10-K is incorporated by reference to the Amcor plc definitive Proxy Statement for its 2026 Annual Shareholder Meeting, which will be filed with the Securities and Exchange Commission pursuant to Regulation 14A of the Securities Exchange Act of 1934, as amended, within 120 days of Amcor plc’s fiscal year end.
Entity Central Index Key	0001748790
Amendment Flag	false
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	FY
Ordinary Shares, Par Value $0.05 Per Share
Entity Information [Line Items]
Title of 12(b) Security	Ordinary Shares, Par Value $0.05 Per Share
Trading Symbol	AMCR
Security Exchange Name	NYSE
1.125% Guaranteed Senior Notes Due 2027
Entity Information [Line Items]
Title of 12(b) Security	1.125% Guaranteed Senior Notes Due 2027
Trading Symbol	AUKF/27
Security Exchange Name	NYSE
5.450% Guaranteed Senior Notes Due 2029
Entity Information [Line Items]
Title of 12(b) Security	5.450% Guaranteed Senior Notes Due 2029
Trading Symbol	AMCR/29
Security Exchange Name	NYSE
3.200% Guaranteed Senior Notes Due 2029
Entity Information [Line Items]
Title of 12(b) Security	3.200% Guaranteed Senior Notes Due 2029
Trading Symbol	AUKF/29
Security Exchange Name	NYSE
3.950% Guaranteed Senior Notes Due 2032
Entity Information [Line Items]
Title of 12(b) Security	3.950% Guaranteed Senior Notes Due 2032
Trading Symbol	AMCR/32
Security Exchange Name	NYSE
3.750% Guaranteed Senior Notes Due 2033
Entity Information [Line Items]
Title of 12(b) Security	3.750% Guaranteed Senior Notes Due 2033
Trading Symbol	AUKF/33
Security Exchange Name	NYSE