XML 28 R7.htm IDEA: XBRL DOCUMENT v3.22.4
Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Cash flows from operating activities      
Net income $ 3,270 $ 3,005 $ 2,013
Reconciliation of net income to net cash provided by operating activities:      
Depreciation 1,221 1,181 1,154
Deferred income taxes 83 184 142
Gains and losses on properties (82) (86) (39)
Loss on asset disposal 0 0 385
Impairment of investment 0 0 99
Changes in assets and liabilities affecting operations:      
Accounts receivable (171) (133) 71
Materials and supplies (35) 3 23
Other current assets (18) (6) 3
Current liabilities other than debt 23 283 34
Other – net (69) (176) (248)
Net cash provided by operating activities 4,222 4,255 3,637
Cash flows from investing activities      
Property additions (1,948) (1,470) (1,494)
Property sales and other transactions 263 159 333
Investment purchases (12) (10) (13)
Investment sales and other transactions 94 99 (1)
Net cash used in investing activities (1,603) (1,222) (1,175)
Cash flows from financing activities      
Dividends (1,167) (1,028) (960)
Common Stock transactions (4) 17 69
Purchase and retirement of Common Stock (3,110) (3,390) (1,439)
Proceeds from borrowings 1,832 1,676 784
Debt repayments (553) (584) (381)
Net cash used in financing activities (3,002) (3,309) (1,927)
Net increase (decrease) in cash and cash equivalents (383) (276) 535
Cash and cash equivalents      
At beginning of year 839 1,115 580
At end of year 456 839 1,115
Supplemental disclosures of cash flow information      
Interest (net of amounts capitalized) 619 579 577
Income taxes (net of refunds) $ 750 $ 654 $ 311