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Accounting Changes and Error Corrections (Policies)	6 Months Ended
Accounting Changes and Error Corrections (Policies)	Jan. 31, 2022
Accounting Changes and Error Corrections [Abstract]
Adoption of Accounting Standards and Updates	Adoption of Accounting Standards and Updates We are required to prepare our condensed consolidated financial statements in accordance with the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") which is the source for all authoritative U.S. generally accepted accounting principles, which are commonly referred to as "GAAP." The FASB ASC is subject to updates by the FASB, which are known as Accounting Standards Updates ("ASUs"). During the six months ended January 31, 2022, we adopted: •FASB ASU No. 2019-12, which simplifies various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. Our adoption of this ASU on August 1, 2021 did not have a material impact on our condensed consolidated financial statements or disclosures. •FASB ASU No. 2020-01, which clarifies the interactions between Topics 321, 323 and 815. This ASU clarifies that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. In addition, the amendments clarify the accounting for certain forward contracts and purchased options accounted for under Topic 815. Our adoption of this ASU on August 1, 2021 did not impact our condensed consolidated financial statements or disclosures. •FASB ASU No. 2020-06, which simplifies the accounting for convertible instruments by removing certain separation models (including the cash conversion model and the beneficial conversion feature model) for convertible instruments. As a result, for convertible instruments with conversion features that are not required to be accounted for as derivatives under Topic 815 or that do not result in substantial premiums accounted for as paid-in capital, the embedded conversion features are no longer separated from the host contract. Consequently, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost, and convertible preferred stock will be accounted for as a single equity instrument measured at its historical cost as long as no other features require bifurcation and recognition as derivatives. On August 1, 2021, we early adopted this ASU. Our adoption of this ASU did not have any impact on our condensed consolidated financial statements or disclosures. •FASB ASU No. 2021-08, which requires that an acquirer recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606, as if it had originated the contracts. Prior to this ASU, an acquirer generally recognized contract assets and contract liabilities assumed that arose from contracts with customers at fair value on the acquisition date. On August 1, 2021, we early adopted this ASU. Our early adoption of this ASU did not have any impact on our condensed consolidated financial statements or disclosures.