Debt - Repayments, Redemptions and Repurchases (Details) € in Millions, $ in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2025 EUR (€)	Mar. 31, 2025 AUD ($)	Mar. 31, 2025 USD ($)
Debt Instrument [Line Items]
Amount Paid	$ 2,158	$ 1,978	$ 4,136
Verizon 4.050% Notes Due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage					4.05%	4.05%
Principal Repaid/ Redeemed/ Repurchased					$ 450
Amount Paid		365
Verizon 3.376% Notes Due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage					3.376%	3.376%
Principal Repaid/ Redeemed/ Repurchased						$ 793
Amount Paid		806
Verizon floating rate notes due 2025
Debt Instrument [Line Items]
Principal Repaid/ Redeemed/ Repurchased						487
Amount Paid		490
Open market repurchases of various Verizon notes
Debt Instrument [Line Items]
Principal Repaid/ Redeemed/ Repurchased	438		$ 438			$ 410
Amount Paid	$ 328	$ 317
Verizon 0.875% Notes Due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	0.875%		0.875%	0.875%
Principal Repaid/ Redeemed/ Repurchased | €				€ 747
Amount Paid	$ 840
Verizon 2.625% Notes Due 2026
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.625%		2.625%	2.625%
Principal Repaid/ Redeemed/ Repurchased	$ 985		$ 985
Amount Paid	$ 990