Restructuring - Schedule of Activity for the Plan by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024
Restructuring Reserve [Roll Forward]
Accrued July 31, 2024			$ 187
Additional Costs/ Adjustments	$ 4	$ 0	13	$ 0
Cash Payments			(182)
Non-Cash Items			(5)
Accrued January 31, 2025	13		13
Total Costs Incurred to Date	236		236
Total Expected Plan Cost	236		236
Operating Segments | Global Business Solutions
Restructuring Reserve [Roll Forward]
Accrued July 31, 2024			84
Additional Costs/ Adjustments			4
Cash Payments			(81)
Non-Cash Items			0
Accrued January 31, 2025	7		7
Total Costs Incurred to Date	100		100
Total Expected Plan Cost	100		100
Operating Segments | Consumer
Restructuring Reserve [Roll Forward]
Accrued July 31, 2024			9
Additional Costs/ Adjustments			0
Cash Payments			(9)
Non-Cash Items			0
Accrued January 31, 2025	0		0
Total Costs Incurred to Date	9		9
Total Expected Plan Cost	9		9
Operating Segments | Credit Karma
Restructuring Reserve [Roll Forward]
Accrued July 31, 2024			0
Additional Costs/ Adjustments			0
Cash Payments			0
Non-Cash Items			0
Accrued January 31, 2025	0		0
Total Costs Incurred to Date	0		0
Total Expected Plan Cost	0		0
Operating Segments | ProTax
Restructuring Reserve [Roll Forward]
Accrued July 31, 2024			2
Additional Costs/ Adjustments			0
Cash Payments			(2)
Non-Cash Items			0
Accrued January 31, 2025	0		0
Total Costs Incurred to Date	2		2
Total Expected Plan Cost	2		2
Corporate
Restructuring Reserve [Roll Forward]
Accrued July 31, 2024			92
Additional Costs/ Adjustments			9
Cash Payments			(90)
Non-Cash Items			(5)
Accrued January 31, 2025	6		6
Total Costs Incurred to Date	125		125
Total Expected Plan Cost	$ 125		$ 125