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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |
Product Warranty Reserves | The following table summarizes the changes in total product warranty reserves for the periods presented:
|  | Product Warranty
Millions of dollars |  | 2020 |  | 2019
Balance at January 1 |  | $ | 383 |  |  | $ | 268 |
Issuances/accruals during the period |  | 226 |  |  | 350 |
Settlements made during the period/other(1) |  | (336) |  |  | (235) |
Balance at December 31 |  | $ | 273 |  |  | $ | 383 |
Current portion |  | $ | 184 |  |  | $ | 254 |
Non-current portion |  | 89 |  |  | 129 |
Total |  | $ | 273 |  |  | $ | 383 |
(1)Includes updated reserve assumptions noted below.
Purchase Obligations | Our expected cash outflows resulting from non-cancellable purchase obligations are summarized by year in the table below:
Millions of dollars |
2021 | $ | 214 |
2022 | 132 |
2023 | 89 |
2024 | 53 |
2025 | 26 |
Thereafter | 42 |
Total purchase obligations | $ | 556 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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- Definition Tabular disclosure of unconditional purchase obligation not recognized as liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308 + Details
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