Device Payment Plan Agreement and Wireless Service Receivables - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables transferred to ABS Entities	$ 16,000	$ 12,100
Guarantee liability	77
Device payment plan agreement, trade-in liability	$ (7,229)	(5,598)	$ (5,307)
Maximum threshold period for new customers	210 days
Minimum threshold period for existing customers	210 days
Product Trade-In
Accounts, Notes, Loans and Financing Receivable [Line Items]
Device payment plan agreement, trade-in liability	$ (366)	$ (70)
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
Device payment plan agreement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Wireless service receivables	$ 16,528
Device payment plan agreement | Consumer | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	45 days
Device payment plan agreement | Consumer | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	45 days
Device payment plan agreement | Business | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	12 months
Device payment plan agreement | Business | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer tenure period	12 months
Wireless Service Plan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Wireless service receivables	$ 4,800