Legal Matters (Tables)

12 Months Ended

Sep. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of Accrued Litigation for Both Covered and Non-Covered Litigation

The following table summarizes the activity related to accrued litigation:

	For the Years Ended September 30,
	2025		2024
	(in millions)
Balance as of beginning of period	$	1,727	$	1,751
Provision for uncovered legal matters	352		322
Provision for covered legal matters	2,232		248
Payments for legal matters	(1,278)		(594)
Balance as of end of period	$	3,033	$	1,727

The following table summarizes the accrual activity related to U.S. covered litigation:

	For the Years Ended September 30,
	2025		2024
	(in millions)
Balance as of beginning of period	$	1,537	$	1,621
Provision for interchange multidistrict litigation	2,210		140
Payments for U.S. covered litigation	(1,049)		(224)
Balance as of end of period	$	2,698	$	1,537

The following table summarizes the accrual activity related to VE territory covered litigation:

	For the Years Ended September 30,
	2025		2024
	(in millions)
Balance as of beginning of period	$	72	$	110
Provision for VE territory covered litigation	22		108
Payments for VE territory covered litigation	(85)		(146)
Balance as of end of period	$	9	$	72