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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Cash Flows From Operating Activities    
Net income $ 536,110 $ 453,000
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization expense 318,082 290,537
Deferred income taxes 137,996 120,220
One-time income tax benefit (20,962) 0
Other 5,935 9,649
Net assets / liabilities from risk management activities 1,295 (1,976)
Net change in operating assets and liabilities (82,970) (62,502)
Net cash provided by operating activities 895,486 808,928
Cash Flows From Investing Activities    
Capital expenditures (1,405,673) (1,199,199)
Proceeds from the sale of discontinued operations 0 4,000
Debt and equity securities activities, net (692) (4,041)
Other, net 6,098 3,839
Net cash used in investing activities (1,400,267) (1,195,401)
Cash Flows From Financing Activities    
Net decrease in short-term debt (464,915) (500,838)
Net proceeds from equity offering 358,047 593,731
Issuance of common stock through stock purchase and employee retirement plans 14,125 14,128
Proceeds from issuance of long-term debt 999,450 1,045,221
Settlement of interest rate swaps 0 (90,141)
Repayment of long-term debt 0 (450,000)
Cash dividends paid (210,674) (181,982)
Debt issuance costs (7,738) (11,254)
Net cash provided by financing activities 688,295 418,865
Net increase in cash and cash equivalents 183,514 32,392
Cash and cash equivalents at beginning of period 24,550 13,771
Cash and cash equivalents at end of period $ 208,064 $ 46,163