New Accounting Standards Not Yet Adopted (Policies)	12 Months Ended
Oct. 31, 2019
New Accounting Standards Not Yet Adopted [Abstract]
Leases	Leases In February 2016, the Financial Accounting Standards Board (FASB) issued new guidance for the accounting for leases, which requires a lessee to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. Leases continue to be classified as either financing or operating, with classification affecting the recognition, measurement and presentation of expenses and cash flows arising from a lease. The new guidance is effective for the Company’s fiscal year that began on November 1, 2019. The Company applied a modified retrospective approach to adoption and has not restated comparative periods. The Company’s leases primarily include non-cancellable operating leases for office space and equipment. The Company elected practical expedients that reduced the complexity of adoption, resulting in no requirement to reassess the following: whether an arrangement is or contains a lease, the classification of the lease, the recognition requirement for initial direct costs and assumptions regarding renewal options that affect the lease term. Upon adoption of the new guidance on November 1, 2019, the Company recognized a right-of-use asset for its operating leases of approximately $270 million which is equal to the lease liability less deferred rent, and a lease liability of approximately $319 million. The lease liability is equal to the present value of the Company’s remaining operating lease commitments disclosed in Note 20 that primarily relate to office space in the U.S., discounted using incremental borrowing rates determined for each lease as of the date of adoption. The new guidance does not have a significant impact on the Company’s results of operations or cash flows because operating lease costs continue to be recognized on a straight-line basis over the remaining lease term and lease payments continue to be classified within operating activities in the Consolidated Statement of Cash Flows.
Simplifying the test for goodwill impairment	Credit losses In June 2016, the FASB issued new guidance for the accounting for credit losses, which changes the impairment model for most financial assets. The new guidance requires the use of an “expected loss” model for instruments measured at amortized cost and an allowance for credit loss model for available-for-sale debt securities. The new guidance is effective for the Company’s fiscal year that begins on November 1, 2020 and requires a modified retrospective approach to adoption. Early adoption is permitted for the fiscal year beginning November 1, 2019. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures. Simplifying the test for goodwill impairment In January 2017, the FASB issued amended guidance that simplifies the test for goodwill impairment. The standard eliminates the current Step 2 from the goodwill impairment test. Under the amended guidance, an entity should perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, but the charge cannot exceed the total amount of goodwill allocated to the reporting unit. The new guidance is effective for the Company’s fiscal year that begins on November 1, 2020 and requires a prospective approach to adoption. Early adoption is permitted for interim or annual goodwill impairment tests. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.
Disclosure requirements for fair value measurement	Disclosure requirements for fair value measurement In August 2018, the FASB issued guidance that makes changes to the disclosure requirements for fair value measurements. As discussed in Note 1, the Company early adopted certain portions of this guidance. The remaining portions of this guidance that were not early adopted will be effective for the Company’s fiscal year that begins on November 1, 2020. Notably, this guidance removes the disclosure requirements for the valuation processes for Level 3 fair value measurements. This guidance also adds new disclosure requirements for the range and weighted average of significant unobservable inputs used to develop fair value measurements categorized within Level 3 of the fair value hierarchy. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.
Capitalization of implementation costs in a cloud computing service contract	Capitalization of implementation costs in a cloud computing service contract In August 2018, the FASB issued new guidance that aligns the accounting requirements for capitalizing implementation costs (implementation, setup and other upfront costs) related to cloud computing (hosting) arrangements that are accounted for as a service contract with the accounting requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). This new guidance does not affect the accounting for the hosting element of a cloud computing arrangement that is a service contract. The new guidance is effective for the Company’s fiscal year that begins on November 1, 2020. Early adoption is permitted and the new guidance may be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.

New Accounting Standards Not Yet Adopted (Policies)

12 Months Ended

Oct. 31, 2019

New Accounting Standards Not Yet Adopted [Abstract]

In February 2016, the Financial Accounting Standards Board (FASB) issued new guidance for the accounting for leases, which requires a lessee to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. Leases continue to be classified as either financing or operating, with classification affecting the recognition, measurement and presentation of expenses and cash flows arising from a lease. The new guidance is effective for the Company’s fiscal year that began on November 1, 2019. The Company applied a modified retrospective approach to adoption and has not restated comparative periods.

The Company’s leases primarily include non-cancellable operating leases for office space and equipment. The Company elected practical expedients that reduced the complexity of adoption, resulting in no requirement to reassess the following: whether an arrangement is or contains a lease, the classification of the lease, the recognition requirement for initial direct costs and assumptions regarding renewal options

that affect the lease term. Upon adoption of the new guidance on November 1, 2019, the Company recognized a right-of-use asset for its operating leases of approximately $270 million which is equal to the lease liability less deferred rent, and a lease liability of approximately $319 million. The lease liability is equal to the present value of the Company’s remaining operating lease commitments disclosed in Note 20 that primarily relate to office space in the U.S., discounted using incremental borrowing rates determined for each lease as of the date of adoption. The new guidance does not have a significant impact on the Company’s results of operations or cash flows because operating lease costs continue to be recognized on a straight-line basis over the remaining lease term and lease payments continue to be classified within operating activities in the Consolidated Statement of Cash Flows.

Simplifying the test for goodwill impairment

Credit losses

In June 2016, the FASB issued new guidance for the accounting for credit losses, which changes the impairment model for most financial assets. The new guidance requires the use of an “expected loss” model for instruments measured at amortized cost and an allowance for credit loss model for available-for-sale debt securities. The new guidance is effective for the Company’s fiscal year that begins on November 1, 2020 and requires a modified retrospective approach to adoption. Early adoption is permitted for the fiscal year beginning November 1, 2019. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.

Simplifying the test for goodwill impairment

In January 2017, the FASB issued amended guidance that simplifies the test for goodwill impairment. The standard eliminates the current Step 2 from the goodwill impairment test. Under the amended guidance, an entity should perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, but the charge cannot exceed the total amount of goodwill allocated to the reporting unit. The new guidance is effective for the Company’s fiscal year that begins on November 1, 2020 and requires a prospective approach to adoption. Early adoption is permitted for interim or annual goodwill impairment tests. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.

Disclosure requirements for fair value measurement

In August 2018, the FASB issued guidance that makes changes to the disclosure requirements for fair value measurements. As discussed in Note 1, the Company early adopted certain portions of this guidance. The remaining portions of this guidance that were not early adopted will be effective for the Company’s fiscal year that begins on November 1, 2020. Notably, this guidance removes the disclosure requirements for the valuation processes for Level 3 fair value measurements. This guidance also adds new disclosure requirements for the range and weighted average of significant unobservable inputs used to develop fair value measurements categorized within Level 3 of the fair value hierarchy. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.

Capitalization of implementation costs in a cloud computing service contract

In August 2018, the FASB issued new guidance that aligns the accounting requirements for capitalizing implementation costs (implementation, setup and other upfront costs) related to cloud computing

(hosting) arrangements that are accounted for as a service contract with the accounting requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). This new guidance does not affect the accounting for the hosting element of a cloud computing arrangement that is a service contract. The new guidance is effective for the Company’s fiscal year that begins on November 1, 2020. Early adoption is permitted and the new guidance may be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. The Company is currently evaluating the potential impact of this guidance on its Consolidated Financial Statements and related disclosures.