Acquisitions and Divestitures - TracFone Wireless, Inc. (Details) - USD ($) $ in Millions		6 Months Ended
	Nov. 23, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash, net of cash acquired and working capital and other adjustments		$ (247)	$ 458
Assets acquired:
Goodwill		$ 28,638		$ 28,603
TracFone Wireless, Inc.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash, net of cash acquired and working capital and other adjustments	$ 3,491
Measurement period adjustment, cash, net of cash acquired	17
Fair value of Verizon common stock (57,596,544 shares)	2,981
Measurement period adjustment, fair value of Verizon common stock	0
Fair value of contingent consideration to be paid	542
Measurement period adjustment, fair value of contingent consideration to be paid	3
Total consideration	7,014
Measurement period adjustment, total consideration	20
Assets acquired:
Current assets	1,370
Measurement period adjustment, current assets	9
Property, plant and equipment, net	96
Measurement period adjustment, property, plant, ,and equipment	(5)
Goodwill	3,723
Measurement period adjustment, goodwill	70
Other intangible assets	4,374
Measurement period adjustment, other intangible assets	0
Other assets	731
Measurement period adjustment, other assets	23
Total assets acquired	10,294
Measurement period adjustment, total assets acquired	97
Liabilities assumed:
Current liabilities	1,433
Measurement period adjustment, current liabilities	63
Deferred income taxes	1,007
Measurement period adjustment, deferred income taxes	19
Other liabilities	840
Measurement period adjustment, other liabilities	(5)
Total liabilities assumed	3,280
Measurement period adjustment, total liabilities assumed	77
Net assets acquired	7,014
Measurement period adjustment, net assets acquired	$ 20
Number of shares issuable (in shares)	57,596,544
TracFone Wireless, Inc. | Adjusted Fair Value
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash, net of cash acquired and working capital and other adjustments	$ 3,508
Fair value of Verizon common stock (57,596,544 shares)	2,981
Fair value of contingent consideration to be paid	545
Total consideration	7,034
Assets acquired:
Current assets	1,379
Property, plant and equipment, net	91
Goodwill	3,793
Other intangible assets	4,374
Other assets	754
Total assets acquired	10,391
Liabilities assumed:
Current liabilities	1,496
Deferred income taxes	1,026
Other liabilities	835
Total liabilities assumed	3,357
Net assets acquired	$ 7,034