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Fair Value Measurements - Recurring (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Fair Value |  |  |
Asset impairments | $ 275 | $ 50 | $ 8
Unrealized gain (loss) on investment | (23) |  |
Unrealized gain (loss) on investment, tax | $ (8) |  |
Available-for-sale securities [Member] |  |  |
Fair Value |  |  |
Investment maturity | 10 years |  |
Redeemable Preferred Stock [Member] |  |  |
Fair Value |  |  |
Asset impairments | $ 25 |  |
Fair Value, Measurements, Recurring [Member] |  |  |
Fair Value |  |  |
Total assets | 819 | 693 |
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member] |  |  |
Fair Value |  |  |
Cash equivalents and money market funds | 327 | 240 |
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Equity securities [Member] |  |  |
Fair Value |  |  |
Available-for-sale securities | 61 | 37 |
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Available-for-sale securities [Member] |  |  |
Fair Value |  |  |
Available-for-sale securities | $ 431 | 360 |
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Redeemable Preferred Stock [Member] |  |  |
Fair Value |  |  |
Available-for-sale securities |  | $ 56 |

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- Definition Fair value portion 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. + References No definition available. + Details
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