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Fair Value Measurements and Financial Instruments - Schedule of Designated Derivative Activity (Details) - Designated as Hedging Instrument - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Interest rate swaps | Fair Value Hedges |  |  |  |
Derivative [Line Items] |  |  |  |
Notional value entered into | $ 0 | $ 0 | $ 0 | $ 0
Notional value settled | 0 | 0 | 0 | 0
Interest rate swaps | Fair Value Hedges | Interest Expense |  |  |  |
Derivative [Line Items] |  |  |  |
Pre-tax gain recognized in Interest expense | 1 | 2 | 3 | 1
Cross currency swaps | Fair Value Hedges |  |  |  |
Derivative [Line Items] |  |  |  |
Notional value entered into | 0 | 0 | 2,146 | 0
Notional value settled | 552 | 612 | 3,619 | 1,450
Exchange gains (losses) from the conversion of foreign currency denominated as debt | (92) | 370 | (834) | 725
Excluded component | (116) | 420 | 166 | 42
Cash received (paid) for settlement of derivatives |  |  | (243) | (67)
Cross currency swaps | Fair Value Hedges | Verizon Stated And Floating Rate Notes and Bonds |  |  |  |
Derivative [Line Items] |  |  |  |
Exchange gains (losses) from the conversion of foreign currency denominated as debt | 92 | (370) | 834 | (725)
Cross currency swaps | Fair Value Hedges | Interest Expense |  |  |  |
Derivative [Line Items] |  |  |  |
Excluded component | 24 | 27 | 50 | 54
Treasury rate locks | Cash Flow Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Notional value entered into | 0 | 500 | 0 | 500
Notional value settled | 0 | 500 | 0 | 500
Pre-tax gain (loss) recognized in Other income (expense), net | $ 0 | $ 5 | 0 | 5
Cash received (paid) for settlement of derivatives |  |  | $ 0 | $ 5

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