U.S. and Europe Retrospective Responsibility Plans - Additional Information (Details) € in Millions, $ in Millions		12 Months Ended
	Jul. 29, 2022 USD ($) shares	Sep. 30, 2022 EUR (€) shares		Sep. 30, 2020 shares	[2]	Jun. 21, 2016 EUR (€)
Class of Stock [Line Items]
Omnibus loss sharing agreement percentage		66.6667%
Litigation loss sharing agreement, obligation threshold | €						€ 1,000
Limit of protection from VE territory covered losses						70.00%
VE covered loss, maximum amount of loss to allow adjustment of conversion rate during six-month period | €		€ 20
Conversion adjustment denominator (in shares)	100
Preferred stock, conversion ratio	100
Series A convertible participating preferred stock
Class of Stock [Line Items]
Preferred stock issued | $	$ 3,500
Preferred stock, shares issued (in shares)	176,655
Cash paid for fractional shares of series A preferred stock | $	$ 3
Preferred Stock | Series A convertible participating preferred stock
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)		0	[1]	0
MasterCard
Class of Stock [Line Items]
Omnibus loss sharing agreement percentage		33.3333%

[1] Increase or decrease is less than one million shares.

[2] Increase or decrease is less than one million shares.