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Commitments and Contingencies | 12 Months Ended
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Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies | Commitments and Contingencies Legal Matters The Company is involved from time to time in various legal proceedings and administrative actions related to the normal conduct of its business, including general liability claims, putative class action lawsuits and litigation concerning its products. Although it is impossible to predict the outcome of any pending legal proceeding, management believes that such proceedings and actions should not, individually or in the aggregate, have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows, except as they relate to asbestos and New Zealand weathertightness ("NZWT") claims as described in these consolidated financial statements. New Zealand Weathertightness Claims Since fiscal year 2002, the Company’s New Zealand subsidiaries have been joined in a number of weathertightness claims in New Zealand that relate to residential buildings (single dwellings and apartment complexes) and a small number of non-residential buildings, primarily constructed from 1998 to 2004. The claims often involve multiple parties and allege that losses were incurred due to excessive moisture penetration of the buildings’ structures. The claims typically include allegations of poor building design, inadequate certification of plans, inadequate construction review and compliance certification and deficient work by sub-contractors. Historically, the Company’s New Zealand subsidiaries have been joined to these claims as one of several co-defendants, including local government entities responsible for enforcing building codes and practices, resulting in the Company’s New Zealand subsidiaries becoming liable for only a portion of each claim. In addition, the Company’s New Zealand subsidiaries have had access to third-party recoveries to defray a portion of the costs incurred in resolving such claims. The resolution of one or more NZWT litigation matters by way of a court decision or settlement has the potential to impact the accounting treatment regarding the probability of a potential loss and the Company’s ability to reasonably estimate a reserve with regards to other NZWT litigation matters. Furthermore, an adverse judgement in one or more NZWT litigation matters could have a material adverse impact on our consolidated financial position, results of operations or cash flows. There remains one claim filed in 2015 on behalf of multiple plaintiffs against the Company and/or its subsidiaries as the sole defendants, which alleges that the New Zealand subsidiaries’ products were inherently defective. The Company believes it has substantial factual and legal defenses to the claim and is defending the claim vigorously. Cridge, et al. (Case Nos. CIV-2015-485-594 and CIV-2015-485-773), In the High Court of New Zealand, Wellington Registry (hereinafter the “Cridge litigation”). From August to December 2020, the trial of phase one of the Cridge litigation was held in Wellington, New Zealand solely to determine whether the Company’s New Zealand subsidiaries had a duty to the plaintiffs and breached that duty. In August 2021, the Wellington High Court issued its decision finding in favor of the Company on all claims (the “Cridge Decision”). In September 2021, plaintiffs filed a notice of appeal of the trial court’s decision, and subsequently the appellate court held a hearing in August 2022. The Company anticipates the appellate court will issue its decision during calendar year 2023. As of 31 March 2023, the Company has not recorded a reserve related to the Cridge litigation as the chance of loss remains not probable following the Cridge Decision. Waitakere, et al. (Case No. CIV-2015-404-3080), In the High Court of New Zealand, Auckland Registry was settled on 24 April 2023 via a negotiated commercial agreement, the terms of which are confidential. As of 31 March 2023, under the applicable accounting guidance, the Company has accrued all costs associated with this agreement. Readers are referred to Note 1 for further information related to our policies related to asserted and unasserted claims. Australia Class Action Securities Claim On 8 May 2023, a group proceeding (class action) was filed in The Supreme Court of Victoria, Australia by Raeken Pty Ltd against James Hardie Industries plc on behalf of persons who purchased certain James Hardie equity securities from 7 February 2022, through 7 November 2022. The litigation is being funded by a litigation funder in Australia, CASL Funder Pty Ltd. The proceeding includes allegations that James Hardie breached relevant provisions of the Corporations Act 2001 (Cth) and the Australian and Securities Investment Act 2001 (Cth), including with respect to certain forward-looking statements James Hardie made about forecasted financial performance measures during the period specified above. The Company is reviewing this matter and will defend the allegations vigorously. As of 31 March 2023, the Company has not recorded a reserve related to this matter as the chance of loss is not probable and the amount of loss, if any, cannot be reasonably estimated. Environmental The operations of the Company, like those of other companies engaged in similar businesses, are subject to a number of laws and regulations on air, soil and water quality, waste handling and disposal. The Company’s policy is to accrue for environmental costs when it is determined that it is probable that an obligation exists and the amount can be reasonably estimated.

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