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v3.23.3

Fair value measurement of assets and liabilities - Narrative (Details) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) $ / shares | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) $ / shares $ / item | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Recognized gains in interest income and other financial gains | $ 81 | $ 42 | $ 195 | $ 104 |
Maximum gross realized gains |  |  |  |  | $ 1
Equity securities at fair value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Proceeds from sale of available for sale securitites |  |  |  |  | 156
Auction Rate Securities | Direct Investment |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investments | 365 |  | 365 |  | 359
Auction Rate Securities | Significant other observable inputs (Level 2) | Direct Investment |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investments | 553 |  | 553 |  | 541
Convertible Senior Notes | 2028 Notes |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Estimated fair value | $ 255 |  | $ 255 |  | $ 884
Closing trading price per share (in dollars per share) | $ / item |  |  | 100 |  |
Common stock, closing price per share (in dollars per share) | $ / shares | $ 1,267.88 |  | $ 1,267.88 |  |
Debt instrument convertible, if-converted in excess of principal | $ 167 |  | $ 167 |  |

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- Definition Amount of excess of preference in liquidation over convertible debt instrument's if-converted par or stated value of share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B + Details
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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 + Details
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