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Schedule I Financial Statements of Parent Company Statement of Cash Flows (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES: |  |  |
Net income attributable to Evergy, Inc. | $ 731.3 | $ 752.7 | $ 879.7
Adjustments to reconcile income to net cash from operating activities: |  |  |
Non-cash compensation | 17.7 | 18.8 | 15.6
Net deferred income taxes and credits | (16.6) | 7.3 | 102.2
Equity in earnings from subsidiaries | (7.4) | (7.3) | (8.2)
Other | 1.5 | 0.7 | (13.8)
Changes in working capital items: |  |  |
Prepaid expenses and other current assets | 136.6 | (3.1) | (299.8)
Accrued taxes | (8.6) | 32.2 | 41.4
Other current liabilities | (43.8) | 0.8 | (19.4)
Changes in other assets | 21.7 | 81.0 | (251.5)
Cash Flows from Operating Activities | 1,980.2 | 1,801.9 | 1,351.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES: |  |  |
Cash Flows used in Investing Activities | (2,471.7) | (2,152.2) | (1,913.8)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES: |  |  |
Short-term debt, net | (381.9) | 172.9 | 840.5
Proceeds from term loan facility | 0.0 | 500.0 | 0.0
Repayment of term loan facility | (500.0) | 0.0 | 0.0
Proceeds from long-term debt | 2,444.8 | 567.7 | 497.3
Retirements of long-term debt | (439.5) | (410.9) | (432.0)
Cash dividends paid | (569.6) | (534.8) | (497.9)
Issuance of common stock | 0.0 | 0.0 | 112.5
Other financing activities | (6.2) | (11.1) | (9.3)
Cash Flows from Financing Activities | 494.0 | 349.3 | 443.4
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 2.5 | (1.0) | (118.7)
Beginning of period | 25.2 | 26.2 | 144.9
End of period | 27.7 | 25.2 | 26.2
Parent |  |  |
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES: |  |  |
Net income attributable to Evergy, Inc. | 729.4 | 748.6 | 872.8
Adjustments to reconcile income to net cash from operating activities: |  |  |
Non-cash compensation | 17.7 | 18.8 | 15.6
Net deferred income taxes and credits | 1.1 | (1.0) | 0.0
Equity in earnings from subsidiaries | (804.7) | (816.1) | (932.9)
Other | 7.0 | 7.1 | 7.0
Changes in working capital items: |  |  |
Accounts receivable from subsidiaries | (14.2) | 7.2 | (18.2)
Income taxes receivable | (5.3) | 9.0 | (7.5)
Prepaid expenses and other current assets | 1.5 | 0.0 | 0.0
Accounts payable to subsidiaries | 11.0 | (2.5) | 3.9
Accrued interest | 4.1 | 0.2 | (1.4)
Other current liabilities | (1.9) | (0.8) | (3.2)
Cash dividends from subsidiaries | 325.0 | 645.0 | 290.0
Changes in other assets | (0.8) | 0.3 | 0.1
Changes in other liabilities | (2.9) | 5.5 | 4.8
Cash Flows from Operating Activities | 267.0 | 621.3 | 231.0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES: |  |  |
Repayment of intercompany note | 1.4 | 287.5 | 347.4
Net money pool lending | (574.5) | (29.5) | 0.0
Equity contribution | 0.0 | (200.0) | 0.0
Cash Flows used in Investing Activities | (573.1) | 58.0 | 347.4
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES: |  |  |
Short-term debt, net | (0.5) | (358.0) | 157.1
Proceeds from term loan facility | 0.0 | 500.0 | 0.0
Repayment of term loan facility | (500.0) | 0.0 | 0.0
Proceeds from long-term debt | 1,379.1 | 0.0 | 0.0
Retirements of long-term debt | 0.0 | (287.5) | (350.0)
Cash dividends paid | (569.6) | (534.8) | (497.9)
Issuance of common stock | 0.0 | 0.0 | 112.5
Other financing activities | (3.3) | (6.1) | (3.6)
Cash Flows from Financing Activities | 305.7 | (686.4) | (581.9)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | (0.4) | (7.1) | (3.5)
Beginning of period | 0.4 | 7.5 | 11.0
End of period | $ 0.0 | $ 0.4 | $ 7.5

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