CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net revenues	$ 5,687	$ 6,054
Operating Expenses
Personnel	981	982
Marketing	205	274
Network and processing	173	181
Professional fees	83	106
Depreciation and amortization	197	182
General and administrative	203	313
Litigation provision	1	0
Total operating expenses	1,843	2,038
Operating income	3,844	4,016
Non-operating Income (Expense)
Interest expense, net	(136)	(111)
Investment income and other	40	69
Total non-operating income (expense)	(96)	(42)
Income before income taxes	3,748	3,974
Income tax provision	622	702
Net income	$ 3,126	$ 3,272
Class A common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 1.42	$ 1.46
Basic Weighted-average Shares Outstanding (in shares)	1,694	1,713
Diluted Earnings Per Share (in dollars per share)	$ 1.42	$ 1.46
Diluted Weighted-average Shares Outstanding (in shares)	2,200	2,240
Class B common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 2.31	$ 2.37
Basic Weighted-average Shares Outstanding (in shares)	245	245
Diluted Earnings Per Share (in dollars per share)	$ 2.31	$ 2.37
Diluted Weighted-average Shares Outstanding (in shares)	245	245
Class C common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 5.69	$ 5.85
Basic Weighted-average Shares Outstanding (in shares)	11	11
Diluted Earnings Per Share (in dollars per share)	$ 5.68	$ 5.84
Diluted Weighted-average Shares Outstanding (in shares)	11	11