XML 18 R6.htm IDEA: XBRL DOCUMENT v3.22.2.2
Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Cash flows from operating activities    
Net income $ 2,480 $ 2,245
Reconciliation of net income to net cash provided by operating activities:    
Depreciation 912 883
Deferred income taxes 23 158
Gains and losses on properties (54) (80)
Changes in assets and liabilities affecting operations:    
Accounts receivable (174) (102)
Materials and supplies (58) (14)
Other current assets 57 57
Current liabilities other than debt 273 294
Other – net (35) (128)
Net cash provided by operating activities 3,424 3,313
Cash flows from investing activities    
Property additions (1,282) (1,025)
Property sales and other transactions 193 135
Investment purchases (8) (5)
Investment sales and other transactions 37 48
Net cash used in investing activities (1,060) (847)
Cash flows from financing activities    
Dividends (881) (764)
Common stock transactions (5) 8
Purchase and retirement of common stock (2,284) (2,460)
Proceeds from borrowings 1,732 1,676
Debt repayments (551) (576)
Net cash used in financing activities (1,989) (2,116)
Net increase in cash and cash equivalents 375 350
Cash and cash equivalents    
At beginning of year 839 1,115
At end of period 1,214 1,465
Supplemental disclosures of cash flow information    
Interest (net of amounts capitalized) 425 391
Income taxes (net of refunds) $ 578 $ 468