Financing Receivables (Internal Credit Risk) (Details) - USD ($) $ in Millions	Apr. 30, 2026	Jul. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
2026	$ 204
2025	352	$ 435
2024	682	962
2023	140	306
2022	5	9
2021		18
Total	1,383	1,730
1 to 4
Financing Receivable, Credit Quality Indicator [Line Items]
2026	95
2025	223	261
2024	553	732
2023	126	242
2022	5	9
2021		18
Total	1,002	1,262
5 to 6
Financing Receivable, Credit Quality Indicator [Line Items]
2026	109
2025	104	174
2024	120	226
2023	10	50
2022	0	0
2021		0
Total	343	450
7 to 10
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	25	0
2024	9	4
2023	4	14
2022	0	0
2021		0
Total	$ 38	$ 18

Financing Receivable, Originated, Remainder Of Fiscal Year

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Amortized cost of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

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