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'Monetary' elements on report '4182 - Disclosure - Derivative Accounting (Details 3)' had a mix of different decimal attribute values. 'Monetary' elements on report '4200 - Disclosure - Palo Verde Sale Leaseback Variable Interest Entities (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '4210 - Disclosure - Discontinued Operations (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '4220 - Disclosure - Real Estate Impairment Charge (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '4230 - Disclosure - Nuclear Decommissioning Trust (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '7010 - Disclosure - Income Taxes (APSC) (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '7011 - Disclosure - Income Taxes (APSC) (Details 2)' had a mix of different decimal attribute values. 'Monetary' elements on report '7012 - Disclosure - Income Taxes (APSC) (Details 3)' had a mix of different decimal attribute values. Process Flow-Through: 0010 - Statement - CONSOLIDATED STATEMENTS OF INCOME Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2011' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2011' Process Flow-Through: 0015 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) Process Flow-Through: 0020 - Statement - CONSOLIDATED BALANCE SHEETS Process Flow-Through: Removing column 'Dec. 31, 2009' Process Flow-Through: Removing column 'Sep. 30, 2009' Process Flow-Through: Removing column 'Dec. 31, 2008' Process Flow-Through: 0025 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Process Flow-Through: 0030 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Process Flow-Through: 0045 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) Process Flow-Through: 5010 - Statement - CONSOLIDATED STATEMENTS OF INCOME (APSC) Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2011' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2011' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2010' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2010' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2010' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2010' Process Flow-Through: 5020 - Statement - CONSOLIDATED BALANCE SHEETS (APSC) Process Flow-Through: Removing column 'Dec. 31, 2009' Process Flow-Through: Removing column 'Dec. 31, 2008' Process Flow-Through: 5025 - Statement - CONSOLIDATED BALANCE SHEETS (APSC) (Parenthetical) Process Flow-Through: 5030 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (APSC) Process Flow-Through: 5045 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (APSC) (Parenthetical) pnw-20111231.xml pnw-20111231.xsd pnw-20111231_cal.xml pnw-20111231_def.xml pnw-20111231_lab.xml pnw-20111231_pre.xml true true