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Income taxes (Tables) | 12 Months Ended
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Dec. 31, 2021
Income Tax Disclosure [Abstract] |
Provision for taxes on income | The provision for taxes on income for the years ended December 31 consists of the following:
| 2021 |  | 2020 |  | 2019
Pretax income |  |  |  |  |
Domestic | $ | (342,951) |  |  | $ | 54,397 |  |  | $ | 217,098 |
Foreign | 181,969 |  |  | 201,195 |  |  | 163,668 |
Total pretax income | $ | (160,982) |  |  | $ | 255,592 |  |  | $ | 380,766 |
Current |  |  |  |  |
Federal | $ | 21,247 |  |  | $ | 10,868 |  |  | $ | 14,933 |
State | 15,212 |  |  | 4,608 |  |  | 2,565 |
Foreign | 55,018 |  |  | 42,764 |  |  | 45,911 |
Total current | $ | 91,477 |  |  | $ | 58,240 |  |  | $ | 63,409 |
Deferred |  |  |  |  |
Federal | $ | (120,243) |  |  | $ | 432 |  |  | $ | 25,064 |
State | $ | (39,709) |  |  | $ | 512 |  |  | 8,599 |
Foreign | 1,045 |  |  | (6,154) |  |  | (3,803) |
Total deferred | $ | (158,907) |  |  | $ | (5,210) |  |  | $ | 29,860 |
Total taxes | $ | (67,430) |  |  | $ | 53,030 |  |  | $ | 93,269 |
Deferred tax liabilities/(assets) | Deferred tax (liabilities)/assets are comprised of the following at December 31:
| 2021 |  | 2020
Property, plant and equipment | $ | (97,806) |  |  | $ | (91,752) |
Intangibles | (96,057) |  |  | (110,796) |
Leases | (75,587) |  |  | (79,531) |
Gross deferred tax liabilities | $ | (269,450) |  |  | $ | (282,079) |
Retiree health benefits | $ | 2,935 |  |  | $ | 4,065 |
Foreign loss carryforwards | 76,462 |  |  | 81,143 |
U.S. Federal loss and credit carryforwards | 34,700 |  |  | 78,100 |
Capital loss carryforwards | 4,050 |  |  | 3,121 |
Employee benefits | 46,503 |  |  | 47,134 |
Leases | 78,518 |  |  | 84,076 |
Accrued liabilities and other assets | 75,611 |  |  | 69,341 |
Gross deferred tax assets | $ | 318,779 |  |  | $ | 366,980 |
Valuation allowance on deferred tax assets | $ | (93,992) |  |  | $ | (128,435) |
Total deferred taxes, net | $ | (44,663) |  |  | $ | (43,534) |
Reconciliation of U.S. Federal Statutory Tax Rate to actual consolidated tax expense | A reconciliation of the U.S. federal statutory tax rate to the actual (benefit from)/provision for income taxes is as follows:
| 2021 |  | 2020 |  | 2019
Statutory tax rate | $ | (33,806) |  |  | 21.0 | % |  | $ | 53,674 |  |  | 21.0 | % |  | $ | 79,961 |  |  | 21.0 | %
State income taxes, net of federal tax benefit | (15,863) |  |  | 9.9 | % |  | 4,859 |  |  | 1.9 | % |  | 7,767 |  |  | 2.0 | %
Valuation allowance | (33,576) |  |  | 20.9 | % |  | 1,589 |  |  | 0.6 | % |  | 3,174 |  |  | 0.8 | %
Tax examinations including change in reserve for uncertain tax positions | 5,665 |  |  | (3.5) | % |  | 5,546 |  |  | 2.2 | % |  | (1,639) |  |  | (0.4) | %
Adjustments to prior year deferred taxes | 1,239 |  |  | (0.8) | % |  | (265) |  |  | (0.1) | % |  | (499) |  |  | (0.1) | %
Foreign earnings taxed at other than U.S. rates | 9,659 |  |  | (6.0) | % |  | 3,275 |  |  | 1.3 | % |  | 5,083 |  |  | 1.3 | %
Divestiture of business | (808) |  |  | 0.5 | % |  | (15,356) |  |  | (6.0) | % |  | — |  |  | — | %
Effect of tax rate changes | 275 |  |  | (0.2) | % |  | (523) |  |  | (0.2) | % |  | 531 |  |  | 0.1 | %
Foreign withholding taxes | 8,107 |  |  | (5.0) | % |  | 2,157 |  |  | 0.8 | % |  | 2,015 |  |  | 0.5 | %
Tax credits | (21,936) |  |  | 13.6 | % |  | (13,529) |  |  | (5.3) | % |  | (13,310) |  |  | (3.5) | %
Global intangible low-taxed income (GILTI) | 11,323 |  |  | (7.0) | % |  | 15,795 |  |  | 6.2 | % |  | 12,340 |  |  | 3.2 | %
Foreign-derived intangible income | (202) |  |  | 0.1 | % |  | (1,238) |  |  | (0.5) | % |  | (1,225) |  |  | (0.3) | %
Foreign currency gain/(loss) on distributions of previously taxed income | 3,365 |  |  | (2.1) | % |  | (344) |  |  | (0.1) | % |  | — |  |  | — | %
Other, net | (872) |  |  | 0.5 | % |  | (2,610) |  |  | (1.1) | % |  | (929) |  |  | (0.2) | %
(Benefit from)/Provision for income taxes | $ | (67,430) |  |  | 41.9 | % |  | $ | 53,030 |  |  | 20.7 | % |  | $ | 93,269 |  |  | 24.4 | %
Reconciliation of gross amounts of unrecognized tax benefits | The following table sets forth the reconciliation of the gross amounts of unrecognized tax benefits at the beginning and ending of the periods indicated:
| 2021 |  | 2020 |  | 2019
Gross Unrecognized Tax Benefits at January 1 | $ | 11,230 |  |  | $ | 12,200 |  |  | $ | 14,400 |
Increases in prior years’ unrecognized tax benefits | 12,283 |  |  | 91 |  |  | — |
Decreases in prior years’ unrecognized tax benefits | (275) |  |  | (464) |  |  | (1,300) |
Increases in current year's unrecognized tax benefits | 1,088 |  |  | 1,569 |  |  | 1,300 |
Decreases in unrecognized tax benefits from the lapse of statutes of limitations | (6,170) |  |  | (1,866) |  |  | (2,300) |
Settlements | (14) |  |  | (300) |  |  | 100 |
Gross Unrecognized Tax Benefits at December 31 | $ | 18,142 |  |  | $ | 11,230 |  |  | $ | 12,200 |

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