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Stockholders' equity (Tables) | 9 Months Ended
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Sep. 30, 2022
Equity [Abstract] |
Summary of activity under our stock repurchase program | Activity under our stock repurchase program, on a trade date basis, was as follows (in millions):
| 2022 |  | 2021
| Shares |  | Dollars |  | Shares |  | Dollars
First quarter | 24.6 |  |  | $ | 5,410 |  |  | 3.7 |  |  | $ | 865 |
Second quarter | — |  |  | — |  |  | 6.5 |  |  | 1,592 |
Third quarter | 1.5 |  |  | 900 |  |  | 4.6 |  |  | 1,069 |
Total stock repurchases | 26.1 |  |  | $ | 6,310 |  |  | 14.8 |  |  | $ | 3,526 |
Components of accumulated other comprehensive income | The components of AOCI were as follows (in millions):
| Foreign currency translation |  | Cash flow hedges |  | Available-for-sale securities |  | Other |  | AOCI
Balance as of December 31, 2021 | $ | (844) |  |  | $ | 61 |  |  | $ | — |  |  | $ | (13) |  |  | $ | (796) |
Foreign currency translation adjustments | (51) |  |  | — |  |  | — |  |  | — |  |  | (51) |
Unrealized gains | — |  |  | 56 |  |  | — |  |  | — |  |  | 56 |
Reclassification adjustments to income | — |  |  | 51 |  |  | — |  |  | — |  |  | 51 |
Income taxes | — |  |  | (23) |  |  | — |  |  | — |  |  | (23) |
Balance as of March 31, 2022 | (895) |  |  | 145 |  |  | — |  |  | (13) |  |  | (763) |
Foreign currency translation adjustments | (65) |  |  | — |  |  | — |  |  | — |  |  | (65) |
Unrealized gains | — |  |  | 67 |  |  | — |  |  | — |  |  | 67 |
Reclassification adjustments to income | — |  |  | 132 |  |  | — |  |  | — |  |  | 132 |
Income taxes | — |  |  | (43) |  |  | — |  |  | — |  |  | (43) |
Balance as of June 30, 2022 | (960) |  |  | 301 |  |  | — |  |  | (13) |  |  | (672) |
Foreign currency translation adjustments | (109) |  |  | — |  |  | — |  |  | — |  |  | (109) |
Unrealized gains | — |  |  | 45 |  |  | — |  |  | — |  |  | 45 |
Reclassification adjustments to income | — |  |  | 129 |  |  | — |  |  | — |  |  | 129 |
Other | — |  |  | — |  |  | — |  |  | (9) |  |  | (9) |
Income taxes | — |  |  | (36) |  |  | — |  |  | — |  |  | (36) |
Balance as of September 30, 2022 | $ | (1,069) |  |  | $ | 439 |  |  | $ | — |  |  | $ | (22) |  |  | $ | (652) |
Reclassifications out of accumulated other comprehensive income | Reclassifications out of AOCI and into earnings, including related income tax expenses, were as follows (in millions):
|  | Three months ended September 30, |  |
Components of AOCI |  | 2022 |  | 2021 |  | Condensed Consolidated Statements of Income locations
Cash flow hedges: |  |  |  |  |  |
Foreign currency contract gains (losses) |  | $ | 69 |  |  | $ | (5) |  |  | Product sales
Cross-currency swap contract losses |  | (198) |  |  | (104) |  |  | Other income (expense), net
|  | (129) |  |  | (109) |  |  | Income before income taxes
|  | 28 |  |  | 23 |  |  | Provision for income taxes
|  | $ | (101) |  |  | $ | (86) |  |  | Net income
|  | Nine months ended September 30, |  |
Components of AOCI |  | 2022 |  | 2021 |  | Condensed Consolidated Statements of Income locations
Cash flow hedges: |  |  |  |  |  |
Foreign currency contract gains (losses) |  | $ | 149 |  |  | $ | (24) |  |  | Product sales
Cross-currency swap contract losses |  | (461) |  |  | (190) |  |  | Other income (expense), net
|  | (312) |  |  | (214) |  |  | Income before income taxes
|  | 67 |  |  | 45 |  |  | Provision for income taxes
|  | $ | (245) |  |  | $ | (169) |  |  | Net income

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