v3.22.4

Financial Instruments - Investment Securities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items] |  |  |
Equity securities, amortized cost | $ 557 | $ 579 |
Equity securities, gross unrealized gain | 191 | 455 |
Equity securities, gross unrealized loss | 0 | (1) |
Equity securities, estimated fair value | 748 | 1,033 |
Total, amortized cost | 557 | 587 |
Total , gross unrealized gains | 191 | 455 |
Total , gross unrealized losses | 0 | (1) |
Total, estimated fair value | 748 | 1,041 |
Net unrealized gain (loss) | (271) | (843) | $ 1,400
Non-U.S. debt securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, amortized cost | 0 | 8 |
Debt securities, gross unrealized gains | 0 | 0 |
Debt securities, gross unrealized losses | 0 | 0 |
Debt securities, estimated fair value | $ 0 | $ 8 |

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