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Stockholders' equity (Tables) | 6 Months Ended
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Jun. 30, 2023
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):
| 2023 |  | 2022
| Shares |  | Dollars |  | Shares |  | Dollars
First quarter | — |  |  | $ | — |  |  | 24.6 |  |  | $ | 5,410 |
Second quarter | — |  |  | — |  |  | — |  |  | — |
Total stock repurchases | — |  |  | $ | — |  |  | 24.6 |  |  | $ | 5,410 |
Components of accumulated other comprehensive income | The components of AOCI were as follows (in millions):
| Foreign currency translation |  | Cash flow hedges |  |  |  | Other |  | AOCI
Balance as of December 31, 2022 | $ | (348) |  |  | $ | 128 |  |  |  |  | $ | (11) |  |  | $ | (231) |
Foreign currency translation adjustments | 28 |  |  | — |  |  |  |  | — |  |  | 28 |
Unrealized losses | — |  |  | (71) |  |  |  |  | — |  |  | (71) |
Reclassification adjustments to income | — |  |  | (30) |  |  |  |  | — |  |  | (30) |
Other | — |  |  | — |  |  |  |  | 21 |  |  | 21 |
Income taxes | — |  |  | 15 |  |  |  |  | — |  |  | 15 |
Balance as of March 31, 2023 | (320) |  |  | 42 |  |  |  |  | 10 |  |  | (268) |
Foreign currency translation adjustments | 11 |  |  | — |  |  |  |  | — |  |  | 11 |
Unrealized gains | — |  |  | 50 |  |  |  |  | — |  |  | 50 |
Reclassification adjustments to income | — |  |  | (87) |  |  |  |  | — |  |  | (87) |
Other | — |  |  | — |  |  |  |  | (1) |  |  | (1) |
Income taxes | — |  |  | 15 |  |  |  |  | — |  |  | 15 |
Balance as of June 30, 2023 | $ | (309) |  |  | $ | 20 |  |  |  |  | $ | 9 |  |  | $ | (280) |
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 June 30, |  |
Components of AOCI |  | 2023 |  | 2022 |  | Condensed Consolidated Statements of Income locations
Cash flow hedges: |  |  |  |  |  |
Foreign currency contract gains |  | $ | 36 |  |  | $ | 53 |  |  | Product sales
Cross-currency swap contract gains (losses) |  | 51 |  |  | (185) |  |  | Other (expense) income, net
|  | 87 |  |  | (132) |  |  | Income before income taxes
|  | (19) |  |  | 28 |  |  | Provision for income taxes
|  | $ | 68 |  |  | $ | (104) |  |  | Net income
|  | Six months ended June 30, |  |
Components of AOCI |  | 2023 |  | 2022 |  | Condensed Consolidated Statements of Income locations
Cash flow hedges: |  |  |  |  |  |
Foreign currency contract gains |  | $ | 88 |  |  | $ | 80 |  |  | Product sales
Cross-currency swap contract gains (losses) |  | 29 |  |  | (263) |  |  | Other (expense) income, net
|  | 117 |  |  | (183) |  |  | Income before income taxes
|  | (25) |  |  | 39 |  |  | Provision for income taxes
|  | $ | 92 |  |  | $ | (144) |  |  | Net income

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