Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Document and Entity Information

v3.21.1
Document and Entity Information
 12 Months Ended
Mar. 31, 2021
shares
Entity Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Mar. 31, 2021
Current Fiscal Year End Date --03-31
Document Transition Report false
Document Shell Company Report false
Entity File Number 1-15240
Entity Registrant Name JAMES HARDIE INDUSTRIES plc
Entity Incorporation, State or Country Code L2
Entity Address, Address Line One Europa House, 2nd Floor
Entity Address, Address Line Two Harcourt Centre
Entity Address, Address Line Three Harcourt Street
Entity Address, City or Town Dublin 2
Entity Address, Postal Zip Code D02, WR20
Entity Address, Country IE
Title of 12(b) Security American Depositary Shares, each representing one unit of CHESS Units of Foreign Securities
Trading Symbol JHX
Security Exchange Name NYSE
Entity Common Stock, Shares Outstanding 444,288,874
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 Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Amendment Flag false
Document Fiscal Year Focus 2021
Document Fiscal Period Focus FY
Entity Central Index Key 0001159152
Business Contact  
Entity Information [Line Items]  
Entity Address, Address Line One Europa House, 2nd Floor
Entity Address, Address Line Two Harcourt Centre
Entity Address, Address Line Three Harcourt Street
Entity Address, City or Town Dublin 2
Entity Address, Postal Zip Code D02, WR20
Entity Address, Country IE
Contact Personnel Name Joseph C. Blasko
City Area Code 353
Local Phone Number 1411 6924
Contact Personnel Fax Number 353 1479 1128