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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Cash flows from operating activities |  |
Net income | $ 2,194 | $ 1,627
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Loss on investment securities, net | 45 | 137
Equity in net losses | 27 | 2
Stock-based compensation | 89 | 93
Depreciation | 410 | 369
Amortization | 34 | 45
Impairment on property and equipment | 0 | 140
Deferred income taxes | 0 | 167
Changes in operating assets and liabilities, net of effect of businesses acquired and disposed: |  |
Receivables | 269 | (1,733)
Other assets | (1,141) | (655)
Benefits payable | 978 | 1,361
Other liabilities | (170) | (333)
Unearned revenues | 7,092 | 10
Other | 36 | 31
Net cash provided by operating activities | 9,863 | 1,261
Cash flows from investing activities |  |
Acquisitions, net of cash and cash equivalents acquired | (189) | (167)
Purchases of property and equipment, net | (487) | (574)
Purchases of investment securities | (2,737) | (3,239)
Proceeds from maturities of investment securities | 577 | 947
Proceeds from sales of investment securities | 811 | 1,363
Net cash used in investing activities | (2,025) | (1,670)
Cash flows from financing activities |  |
Receipts from contract deposits, net | 3,510 | 3,076
Proceeds from issuance of senior notes, net | 1,215 | 744
Repayments of senior notes | (349) | 0
Repayments from issuance of commercial paper, net | 238 | (418)
Repayment of term loan | (500) | 0
Debt issue costs | (4) | (2)
Change in book overdraft | 159 | 65
Common stock repurchases | (623) | (1,028)
Dividends paid | (211) | (191)
Other | (120) | (11)
Net cash provided by financing activities | 3,315 | 2,235
Increase in cash and cash equivalents | 11,153 | 1,826
Cash and cash equivalents at beginning of period | 5,061 | 3,394
Cash and cash equivalents at end of period | 16,214 | 5,220
Supplemental cash flow disclosures: |  |
Interest payments | 175 | 171
Income tax payments, net | 681 | 373
Details of businesses acquired in purchase transactions: |  |
Fair value of assets acquired, net of cash and cash equivalents acquired | 346 | 190
Less: Fair value of liabilities assumed | (162) | (23)
Less: Noncontrolling interests acquired | 5 | 0
Cash paid for acquired businesses, net of cash and cash equivalents acquired | $ 189 | $ 167

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