Equity and Accumulated Other Comprehensive Loss - Changes in Components of Total Equity (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, beginning balance (in shares)			(81,753,488)
Beginning balance			$ 100,575
Net income attributable to Verizon	$ 5,003	$ 4,593	9,882	$ 9,195
Foreign currency translation adjustments	76	0	143	(50)
Unrealized gain (loss) on cash flow hedges	(21)	19	0	54
Unrealized loss on fair value hedges	(39)	(104)	(692)	96
Unrealized gain (loss) on marketable securities	0	(1)	1	(3)
Defined benefit pension and postretirement plans	(2)	(2)	$ (4)	(4)
Shareholder plans (in shares)			6,600,000
Total comprehensive income	$ 5,135	4,614	$ 9,552	9,517
Treasury stock, ending balance (in shares)	(75,108,838)		(75,108,838)
Ending balance	$ 104,361	$ 97,539	$ 104,361	$ 97,539
Dividends declared per common share (USD per share)	$ 0.6775	$ 0.6650	$ 1.3550	$ 1.3300
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	4,291,434,000	4,291,434,000	4,291,434,000	4,291,434,000
Beginning balance	$ 429	$ 429	$ 429	$ 429
Ending balance (in shares)	4,291,434,000	4,291,434,000	4,291,434,000	4,291,434,000
Ending balance	$ 429	$ 429	$ 429	$ 429
Additional Paid In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	13,415	13,571	13,466	13,631
Other	(3)	(32)	(54)	(92)
Ending balance	13,412	13,539	13,412	13,539
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	91,128	84,714	89,110	82,915
Net income attributable to Verizon	5,003	4,593	9,882	9,195
Dividends declared	(2,856)	(2,803)	(5,717)	(5,602)
Other			0	(4)
Ending balance	93,275	86,504	93,275	86,504
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,489)	(1,199)	(923)	(1,380)
Foreign currency translation adjustments	76	0	143	(50)
Unrealized gain (loss) on cash flow hedges	(21)	19	0	54
Unrealized loss on fair value hedges	(39)	(104)	(692)	96
Unrealized gain (loss) on marketable securities	0	(1)	1	(3)
Defined benefit pension and postretirement plans	(2)	(2)	(4)	(4)
Other comprehensive income (loss)	14	(88)	(552)	93
Ending balance	$ (1,475)	$ (1,287)	$ (1,475)	$ (1,287)
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, beginning balance (in shares)	(75,178,000)	(82,179,000)	(81,753,000)	(87,173,000)
Beginning balance	$ (3,295)	$ (3,602)	$ (3,583)	$ (3,821)
Employee plans (in shares)	70,000	265,000	6,645,000	5,257,000
Employee plans	$ 3	$ 12	$ 291	$ 231
Shareholder plans (in shares)			0	2,000
Shareholder plans			$ 0	$ 0
Treasury stock, ending balance (in shares)	(75,108,000)	(81,914,000)	(75,108,000)	(81,914,000)
Ending balance	$ (3,292)	$ (3,590)	$ (3,292)	$ (3,590)
Deferred Compensation-ESOPs and Other
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	534	421	738	656
Restricted stock equity grant	183	173	374	275
Amortization	(3)	(17)	(398)	(354)
Ending balance	714	577	714	577
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,315	1,392	1,338	1,369
Total comprehensive income	118	109	222	229
Distributions and other	(135)	(134)	(262)	(231)
Ending balance	$ 1,298	$ 1,367	$ 1,298	$ 1,367