0000764622 2026-06-23 2026-06-23 0000764622 pnw:ArizonaPublicServiceCompanyMember 2026-06-23 2026-06-23 0000764622 false AZ 0000007286 8-K 2026-06-23 false AZ false false false false false 8-K 2026-06-23 1-8962 PINNACLE WEST CAPITAL CORPORATION 86-0512431 400 North Fifth Street, P.O. Box 53999 Phoenix AZ 85072-3999 (602) 250-1000 1-4473 ARIZONA PUBLIC SERVICE COMPANY 86-0011170 400 North Fifth Street, P.O. Box 53999 Phoenix AZ 85072-3999 (602) 250-1000 false false false false Common Stock PNW NYSE false