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Postretirement benefits (Schedule of Expected Future Benefit Payments) (Details) $ in Millions | Dec. 31, 2020 USD ($)
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Other Postretirement Benefits Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | $ 19
2022 | 20
2023 | 16
2024 | 12
2025 | 7
2026-2030 | 5
Non - U.S. | Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | 30
2022 | 28
2023 | 30
2024 | 32
2025 | 32
2026-2030 | 185
UNITED STATES | Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
2021 | 159
2022 | 166
2023 | 171
2024 | 175
2025 | 180
2026-2030 | $ 947

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