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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT - Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash Flows from Operating Activities |  |  |
Net income | $ 635,944 | $ 570,052 | $ 557,813
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 719,141 | 686,253 | 664,140
Deferred income taxes | 117,471 | 69,469 | (1,479)
Accounts receivable | (72,559) | (18,191) | (12,789)
Accounts payable | 20,267 | (6,059) | 50,641
Net cash provided by operating activities | 860,014 | 966,365 | 956,726
Cash flows from investing activities |  |  |
Net cash used for investing activities | (1,386,929) | (1,277,818) | (1,130,977)
Cash flows from financing activities |  |  |
Issuance of long-term debt | 746,999 | 1,596,672 | 1,092,188
Short-term debt borrowings under revolving credit facility | 0 | 751,690 | 49,000
Short-term debt repayments under revolving credit facility | (19,000) | (770,690) | (65,000)
Short-term borrowings and (repayments) — net | 142,000 | 73,325 | 54,275
Dividends paid on common stock | (369,478) | (350,577) | (329,643)
Repayment of long-term debt | 0 | (915,150) | (600,000)
Common stock equity issuance and purchases — net | (2,350) | (1,389) | 692
Net cash provided by financing activities | 476,916 | 361,138 | 178,768
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | (49,999) | 49,685 | 4,517
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR | 59,968 | 10,283 | 5,766
CASH AND CASH EQUIVALENTS AT END OF YEAR | 9,969 | 59,968 | 10,283
Pinnacle West |  |  |
Cash Flows from Operating Activities |  |  |
Net income | 618,720 | 550,559 | 538,320
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in earnings of subsidiaries — net | (628,916) | (566,147) | (562,946)
Depreciation and amortization | 93 | 76 | 76
Deferred income taxes | (11,381) | 33,007 | (35,831)
Accounts receivable | 8,897 | (7,903) | 182
Accounts payable | (2,598) | (1,964) | (2,129)
Accrued taxes and income tax receivables — net | 16,079 | 9,610 | 16,400
Dividends received from subsidiaries | 376,500 | 357,500 | 336,300
Other | 4,214 | 20,163 | (1,300)
Net cash provided by operating activities | 381,608 | 394,901 | 289,072
Cash flows from investing activities |  |  |
Investments in subsidiaries | (145,266) | (137,881) | 1,557
Repayments of loans from subsidiaries | 4,017 | 932 | 4,190
Advances of loans to subsidiaries | (12,256) | (7,261) | (4,165)
Net cash used for investing activities | (153,505) | (144,210) | 1,582
Cash flows from financing activities |  |  |
Issuance of long-term debt | 300,000 | 496,950 | 0
Short-term debt borrowings under revolving credit facility | 0 | 211,690 | 49,000
Short-term debt repayments under revolving credit facility | (19,000) | (230,690) | (65,000)
Short-term borrowings and (repayments) — net | (136,700) | 73,325 | 54,275
Dividends paid on common stock | (369,478) | (350,577) | (329,643)
Repayment of long-term debt | 0 | (450,000) | 0
Common stock equity issuance and purchases — net | (2,350) | (1,389) | 692
Net cash provided by financing activities | (227,528) | (250,691) | (290,676)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 575 | 0 | (22)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR | 19 | 19 | 41
CASH AND CASH EQUIVALENTS AT END OF YEAR | $ 594 | $ 19 | $ 19

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