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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Accounts receivable, allowances	$ 19	$ 20
Common Class A
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	137,199,200	122,414,827
Common stock outstanding (in shares)	137,199,200	122,414,827
Common Class B
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	377,650,449	391,970,996
Common stock outstanding (in shares)	377,650,449	391,970,996

X

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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