Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Property and equipment - accumulated depreciation	$ 61,772	$ 59,534
Other intangible assets - accumulated amortization	$ 39,023	$ 33,994
Preferred stock, authorized (in shares)	20,000,000	20,000,000
Preferred stock, issued (in shares)	0	0
Treasury stock (in shares)	872,791,028	872,791,028
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	7,500,000,000	7,500,000,000
Common stock, issued (in shares)	4,517,861,156	4,651,093,045
Common stock, shares outstanding at end of period (in shares)	3,645,070,128	3,778,302,017
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	75,000,000	75,000,000
Common stock, issued (in shares)	9,444,375	9,444,375
Common stock, shares outstanding at end of period (in shares)	9,444,375	9,444,375