Debt - Exchange Offers (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)
Debt Instrument [Line Items]
Principal Amount Exchanged	$ 2,207	$ 2,207
Principal Amount Issued	2,162	2,162
Debt instrument, unamortized premium	45	$ 45
Verizon 1.450%-7.750% Notes Due 2026-2030
Debt Instrument [Line Items]
Principal Amount Exchanged	2,207
Principal Amount Issued	$ 0
Verizon 1.450%-7.750% Notes Due 2026-2030 | Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	1.45%	1.45%
Verizon 1.450%-7.750% Notes Due 2026-2030 | Maximum
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	7.75%	7.75%
Verizon 5.401% notes due 2037
Debt Instrument [Line Items]
Principal Amount Exchanged	$ 0
Principal Amount Issued	$ 2,162
Debt instrument, interest rate, stated percentage	5.401%	5.401%