Device Payment Plan Agreement and Wireless Service Receivables - Narrative (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables transferred to ABS Entities	$ 29,018	$ 27,297
Other receivables, net	1,200	911
Device payment plan agreement, trade-in liability	$ 9,678	8,902
Maximum threshold period for new customers	210 days
Minimum threshold period for existing customers	210 days
Verizon Business Group And Verizon Consumer Group
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum threshold period for new customers	210 days
Minimum threshold period for existing customers	210 days
Minimum | Device payment plan agreement | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	45 days
Minimum | Device payment plan agreement | Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	12 months
Maximum | Device payment plan agreement | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	45 days
Maximum | Device payment plan agreement | Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	12 months
Product Trade-In
Accounts, Notes, Loans and Financing Receivable [Line Items]
Device payment plan agreement, trade-in liability	$ 396	566
Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables transferred to ABS Entities	$ 29,900	$ 26,100