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Leases - Additional Information (Details) $ in Billions | Jun. 30, 2026 USD ($) trust | Mar. 31, 2026 agreement | Sep. 30, 2025 trust | Dec. 31, 1986 trust lease
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Lessee, Lease, Description [Line Items] |  |  |  |
Number of lease agreements, sell and lease back | lease |  |  |  | 3
Number of lease agreements modified | agreement |  | 2 |  |
Term of contract | 20 years |  |  |
Lease not yet commenced | $ | $ 9.5 |  |  |
Variable Interest Entity | APS |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Number of VIE lessor trusts acquired |  |  | 2 |
Number of VIE lessor trusts | 1 |  |  | 3

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- Definition Number of VIE lessor trusts with whom agreements have been made to sell and lease back interests in certain nuclear generating assets and related common facilities. + References 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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