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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Cash flows from operating activities: |  |
Net earnings | $ 813 | $ 570
Provision for credit losses | 12 | 18
Deferred income taxes and tax uncertainties | (7) | 9
Depreciation and amortization | 137 | 137
Impairment of goodwill, intangible and long-lived assets | 0 | 177
Net (gains) losses from sale or redemption of assets and business divestitures | (3) | 104
Stock-based compensation | 33 | 36
Subtotal | 172 | 481
Change in operating assets and liabilities: |  |
Accounts receivable | (298) | (145)
Inventories | (64) | (222)
Prepaid expenses and other assets | (1) | (29)
Trade accounts payable | 167 | 145
Accrued liabilities | (13) | (13)
Income taxes - net | (42) | (19)
Other non-current liabilities | (10) | 19
Subtotal | (261) | (264)
Net cash provided by operating activities | 724 | 787
Cash flows from investing activities: |  |
Additions to property, buildings, equipment and intangibles | (197) | (152)
Proceeds from sale or redemption of assets and business divestitures | 17 | 22
Other - net | 0 | (2)
Net cash used in investing activities | (180) | (132)
Cash flows from financing activities: |  |
Borrowings under lines of credit | 0 | 12
Payments against lines of credit | 0 | (65)
Proceeds from long-term debt | 0 | 1,583
Payments of long-term debt | (8) | (1,361)
Proceeds from stock options exercised | 31 | 47
Payments for employee taxes withheld from stock awards | (29) | (16)
Purchases of treasury stock | (525) | (101)
Cash dividends paid | (261) | (246)
Other - net | 2 | 0
Net cash used in financing activities | (790) | (147)
Exchange rate effect on cash and cash equivalents | (11) | (9)
Net change in cash and cash equivalents | (257) | 499
Cash and cash equivalents at beginning of year | 585 | 360
Cash and cash equivalents at end of period | $ 328 | $ 859

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