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Consolidated Cash Flow Statement - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Operating Activities    
Net income $ 1,483 $ 1,850
Depreciation and amortization 572 606
Asset impairments 3 0
Stock-based compensation 30 101
Deferred income taxes (42) (30)
Net (gains) losses on asset dispositions 34 67
Equity companies' earnings (in excess of) less than dividends paid (25) (53)
Operating working capital (432) 292
Postretirement benefits 39 7
Other 6 2
Cash Provided by Operations 1,668 2,842
Investing Activities    
Capital spending (734) (894)
Proceeds from dispositions of property 31 5
Investments in time deposits (632) (509)
Maturities of time deposits 598 404
Other 1 17
Cash Used for Investing (736) (977)
Financing Activities    
Cash dividends paid (1,133) (1,087)
Change in short-term debt 854 (497)
Debt proceeds 5 1,842
Debt repayments (269) (753)
Proceeds from exercise of stock options 52 212
Acquisitions of common stock for the treasury (393) (449)
Other (57) (40)
Cash Used for Financing (941) (772)
Effect of Exchange Rate Changes on Cash and Cash Equivalents (8) (17)
Change in Cash and Cash Equivalents (17) 1,076
Cash and Cash Equivalents - Beginning of Period 303 442
Cash and Cash Equivalents - End of Period $ 286 $ 1,518