Debt - Tender Offers (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)
Debt Instrument [Line Items]
Principal Amount Purchased	$ 503	$ 503
Cash Consideration	501	501
Verizon 1.450%-7.750% Notes Due 2026-2030
Debt Instrument [Line Items]
Principal Amount Purchased	503	$ 503
Cash Consideration	$ 501
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%