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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
OPERATING ACTIVITIES |  |  |
Net (loss) income | $ (1,548) | $ 2,033 | $ (1,232)
Adjustments to reconcile net (loss) income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 3,239 | 4,019 | 4,710
Gain on sale of businesses | (773) | 0 | 0
Loss on disposal groups held for sale | 700 | 0 | 0
Goodwill impairment | 3,271 | 0 | 2,642
Deferred income taxes | (1,230) | 598 | 366
Provision for uncollectible accounts | 133 | 105 | 189
Net (gain) loss on early retirement and modification of debt | (214) | (8) | 105
Unrealized loss (gain) on investments | 191 | (138) | 0
Stock-based compensation | 98 | 120 | 175
Changes in current assets and liabilities: |  |  |
Accounts receivable | (158) | (8) | 115
Accounts payable | 98 | (261) | (543)
Accrued income and other taxes | 972 | (69) | 27
Other current assets and liabilities, net | (372) | (353) | (262)
Retirement benefits | 46 | 163 | (111)
Changes in other noncurrent assets and liabilities, net | 258 | 283 | 246
Other, net | 24 | 17 | 97
Net cash provided by operating activities | 4,735 | 6,501 | 6,524
INVESTING ACTIVITIES |  |  |
Capital expenditures | (3,016) | (2,900) | (3,729)
Proceeds from sale of businesses | 8,369 | 0 | 0
Proceeds from sale of property, plant and equipment and other assets | 120 | 135 | 153
Other, net | 3 | 53 | 12
Net cash provided by (used in) investing activities | 5,476 | (2,712) | (3,564)
FINANCING ACTIVITIES |  |  |
Net proceeds from issuance of long-term debt | 0 | 1,881 | 4,361
Payments of long-term debt | (8,093) | (3,598) | (7,315)
Net (payments of) proceeds from revolving line of credit | (200) | 50 | (100)
Dividends paid | (780) | (1,087) | (1,109)
Repurchases of common stock | (200) | (1,000) | 0
Other, net | (40) | (53) | (87)
Net cash used in financing activities | (9,313) | (3,807) | (4,250)
Net increase (decrease) in cash, cash equivalents and restricted cash | 898 | (18) | (1,290)
Cash, cash equivalents and restricted cash at beginning of period | 409 | 427 | 1,717
Cash, cash equivalents and restricted cash at end of period | 1,307 | 409 | 427
Supplemental cash flow information: |  |  |
Income taxes (paid) refunded, net | (76) | (112) | 28
Interest paid (net of capitalized interest of $66, $53 and $75) | (1,365) | (1,487) | (1,627)
Supplemental non-cash information regarding investing activities: |  |  |
Sale of property, plant and equipment in exchange for note receivable | 0 | 56 | 0
Supplemental non-cash information regarding financing activities: |  |  |
Purchase of software subscription in exchange for installment debt | 0 | 77 | 0
Cash, cash equivalents and restricted cash: |  |  |
Cash and cash equivalents | 1,251 | 354 | 406
Cash and cash equivalents and restricted cash included in Assets held for sale | 44 | 40 | 0
Restricted cash included in Other current assets | 0 | 2 | 3
Restricted cash included in Other, net noncurrent assets | 12 | 13 | 18
Total | $ 1,307 | $ 409 | $ 427

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