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Cash, Cash Equivalents and Restricted Cash (Tables) | 12 Months Ended
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Dec. 31, 2019
Cash and Cash Equivalents [Abstract] |
Restrictions on Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents and restricted cash as reported within our Consolidated Statements of Cash Flows:
| December 31,
Millions of dollars | 2019 |  | 2018 |  | 2017
Cash and cash equivalents as presented in our Consolidated Balance Sheets | $ | 1,952 |  |  | $ | 1,498 |  |  | $ | 1,196 |
Restricted cash included in prepaid and other current assets (1) | — |  |  | 40 |  |  | 48 |
Restricted cash included in other noncurrent assets (1) | — |  |  | — |  |  | 49 |
Cash, cash equivalents and restricted cash as presented in our Consolidated Statements of Cash Flows | $ | 1,952 |  |  | $ | 1,538 |  |  | $ | 1,293 |
(1) Change in restricted cash resulted in realization of foreign currency translation adjustments of $0 million and $3 million, respectively, for the year ended December 31, 2019 and 2018 compared to the prior year.
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents and restricted cash as reported within our Consolidated Statements of Cash Flows:
| December 31,
Millions of dollars | 2019 |  | 2018 |  | 2017
Cash and cash equivalents as presented in our Consolidated Balance Sheets | $ | 1,952 |  |  | $ | 1,498 |  |  | $ | 1,196 |
Restricted cash included in prepaid and other current assets (1) | — |  |  | 40 |  |  | 48 |
Restricted cash included in other noncurrent assets (1) | — |  |  | — |  |  | 49 |
Cash, cash equivalents and restricted cash as presented in our Consolidated Statements of Cash Flows | $ | 1,952 |  |  | $ | 1,538 |  |  | $ | 1,293 |
(1) Change in restricted cash resulted in realization of foreign currency translation adjustments of $0 million and $3 million, respectively, for the year ended December 31, 2019 and 2018 compared to the prior year.

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