CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - shares shares in Millions	Sep. 30, 2024	Dec. 31, 2023
Common class A
Common stock, shares authorized (in shares)	10,000	10,000
Common stock, shares outstanding (in shares)	1,621	1,616
Common class B
Common stock, shares authorized (in shares)	250	250
Common stock, shares outstanding (in shares)	175	175