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v3.23.1

Financial Instruments - Information on Available-for-sale Investments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | $ 760 |  | $ 569
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | 760 |  | 569
Publicly traded equity securities, fair value | 1,585 |  | 1,284
Total debt and publicly traded equity securities, fair value | 2,345 |  | 1,853
Unrealized net (gains) losses | (338) | $ 225 |
Commercial paper |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 663 |  | 498
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | 663 |  | 498
U.S. government and agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 92 |  | 68
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | 92 |  | 68
Corporate notes and bonds |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 4 |  | 3
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | 4 |  | 3
Foreign government bonds |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 1 |  | 0
Debt securities, unrealized gains | 0 |  | 0
Debt securities, unrealized losses | 0 |  | 0
Debt securities, fair value | $ 1 |  | $ 0

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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