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Fair Value Measurements and Financial Instruments - Schedule of Designated Derivative Activity (Details) - Fair Value Hedges - Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest rate swaps
Derivative [Line Items]
Notional value entered into	$ 0	$ 0
Notional value settled	0	0
Interest rate swaps | Interest Expense
Derivative [Line Items]
Pre-tax gain (loss) recognized in Interest expense	2	(1)
Cross currency swaps
Derivative [Line Items]
Notional value entered into	2,146	0
Notional value settled	3,067	838
Exchange gains (losses) from the conversion of foreign currency denominated as debt	(742)	355
Excluded component	282	(378)
Cash received (paid) for settlement of derivatives	(216)	(117)
Cross currency swaps | Verizon Stated And Floating Rate Notes and Bonds
Derivative [Line Items]
Exchange gains (losses) from the conversion of foreign currency denominated as debt	742	(355)
Cross currency swaps | Interest Expense
Derivative [Line Items]
Excluded component	$ 26	$ 27

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- Definition

Amount of gain (loss) from excluded component of derivative hedge, recognized in earnings. Excludes recognition under systematic and rational method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

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+ References

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