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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Cash flow from operating activities: |  |
Net income | $ 2,942 | $ 2,284
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation, depletion and amortization | 996 | 902
Metals inventory adjustments | 18 | 1
Net gain on sales of assets | (2) | (3)
Stock-based compensation | 62 | 56
Net charges for environmental and asset retirement obligations, including accretion | 119 | 94
Payments for environmental and asset retirement obligations | (120) | (110)
Net charges for defined pension and postretirement plans | 20 | 1
Pension plan contributions | (50) | (42)
Net gain on early extinguishment of debt | (8) | 0
Deferred income taxes | 63 | 79
Other, net | (17) | 77
Changes in working capital and other: |  |
Accounts receivable | 314 | (279)
Inventories | (40) | (299)
Other current assets | (99) | (12)
Accounts payable and accrued liabilities | 185 | 272
Accrued income taxes and timing of other tax payments | (1,071) | 505
Net cash provided by operating activities | 3,312 | 3,470
Cash flow from investing activities: |  |
Capital expenditures | (1,586) | (803)
Proceeds from sales of assets | 96 | 16
Loans to PT Smelting for expansion | (34) | 0
Acquisition of minority interest in PT Smelting | 0 | (33)
Other, net | (6) | (13)
Net cash used in investing activities | (1,530) | (833)
Cash flow from financing activities: |  |
Proceeds from debt | 4,666 | 160
Repayments of debt | (2,993) | (179)
Cash dividends and distributions paid: |  |
Common stock | (438) | (111)
Noncontrolling interests | (513) | (93)
Treasury stock purchases | (1,185) | 0
Contributions from noncontrolling interests | 94 | 88
Proceeds from exercised stock options | 106 | 184
Payments for withholding of employee taxes related to stock-based awards | 55 | 19
Debt financing costs and other, net | (33) | (1)
Net cash (used in) provided by financing activities | (351) | 29
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect | 1,431 | 2,666
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of year | 8,314 | 3,903
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period | 9,745 | 6,569
North America Copper Mines Segment |  |
Cash flow from investing activities: |  |
Capital expenditures | (276) | (95)
South America Mines Segment |  |
Cash flow from investing activities: |  |
Capital expenditures | (124) | (47)
Grasberg Segment |  |
Cash flow from investing activities: |  |
Capital expenditures | (759) | (576)
Indonesia Smelter |  |
Cash flow from investing activities: |  |
Capital expenditures | (344) | (48)
Molybdenum |  |
Cash flow from investing activities: |  |
Capital expenditures | (9) | (3)
Other Segments |  |
Cash flow from investing activities: |  |
Capital expenditures | (74) | (34)
Cerro Verde Royalty Dispute |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Charges for Cerro Verde royalty dispute | 0 | 9
Payments for Cerro Verde royalty dispute | $ 0 | $ (65)

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