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Cash, cash equivalents, restricted cash and cash equivalents and investments - Components of Cash, Cash Equivalents, Restricted Cash and Cash Equivalents and Investments (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Cash and cash equivalents | $ 2,171 | $ 1,910 |  |
Restricted cash and cash equivalents | 1,085 | 1,453 |  |
Total cash, cash equivalents, restricted cash and cash equivalents | 3,256 | 3,363 | $ 2,528 | $ 3,648
Short-term investments | 3,320 | 2,339 |  |
Long-term investments | 149 | 322 |  |
Cash in bank accounts |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Cash and cash equivalents | 1,238 | 1,160 |  |
Cash in bank accounts | Argentina |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 413 | 496 |  |
Cash in bank accounts | Mexico |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 38 | 9 |  |
Cash in bank accounts | Chile |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 27 | 4 |  |
Cash in bank accounts | Columbia |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 0 | 1 |  |
Money market |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Cash and cash equivalents | 764 | 599 |  |
Restricted cash and cash equivalents | 26 | 33 |  |
Money market | Columbia |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 0 | 5 |  |
Time deposits |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Cash and cash equivalents | 169 | 130 |  |
Time deposits | Mexico |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 264 | 239 |  |
Time deposits | Chile |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 36 | 49 |  |
U.S. government debt securities |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Cash and cash equivalents | 0 | 21 |  |
Foreign government debt securities (Central Bank of Brazil mandatory guarantee) |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 0 | 158 |  |
Securitization transactions |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash and cash equivalents | 281 | 459 |  |
U.S. government debt securities |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 1,124 | 558 |  |
Long-term investments | 0 | 175 |  |
Foreign government debt securities (Central Bank of Brazil mandatory guarantee) |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 1,762 | 1,219 |  |
Foreign government debt securities |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 94 | 123 |  |
Long-term investments | 67 | 70 |  |
Foreign government debt securities | Guarantee of line of credit |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 6 |  |  |
Foreign government debt securities | Pending approvals |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Long-term investments | 15 |  |  |
Time deposits |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 326 | 439 |  |
Securitization transactions |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 1 | 0 |  |
Long-term investments | 24 | 21 |  |
Equity securities at fair value |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Short-term investments | 13 | 0 |  |
Equity securities held at cost |  |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |
Long-term investments | $ 58 | $ 56 |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-4 + Details
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