XML 112 R98.htm IDEA: XBRL DOCUMENT v3.20.4

RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS, Financial Statement Location (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Pension Plan | Non-U.S. Plans
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Amortization of net prior service cost (benefit)	$ 0
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	52
Defined Benefit Plan, Funded (Unfunded) Status of Plan	149	$ 156
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Actuarial Gain Loss Before Tax	311	330
Prior service costs (benefits)	0	0
Total	311	330
Pension Plan | Non-U.S. Plans | Other Assets
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(123)	(106)
Pension Plan | Non-U.S. Plans | Employee compensation and benefits [Member]
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	0	0
Pension Plan | Non-U.S. Plans | Retirement and post-retirement benefits
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(272)	(262)
Pension Plan | U.S. Plan
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Amortization of net prior service cost (benefit)	0
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	4
Defined Benefit Plan, Funded (Unfunded) Status of Plan	71	59
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Actuarial Gain Loss Before Tax	134	115
Prior service costs (benefits)	0	0
Total	134	115
Pension Plan | U.S. Plan | Other Assets
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	0	0
Pension Plan | U.S. Plan | Employee compensation and benefits [Member]
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(1)	(1)
Pension Plan | U.S. Plan | Retirement and post-retirement benefits
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(70)	(58)
Post-Retirement Benefit Plan | U.S. Plan
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Amortization of net prior service cost (benefit)	(1)
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	4
Defined Benefit Plan, Funded (Unfunded) Status of Plan	1	(1)
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Actuarial Gain Loss Before Tax	11	10
Prior service costs (benefits)	(5)	(12)
Total	6	(2)
Post-Retirement Benefit Plan | U.S. Plan | Other Assets
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	0	(1)
Post-Retirement Benefit Plan | U.S. Plan | Employee compensation and benefits [Member]
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	0	0
Post-Retirement Benefit Plan | U.S. Plan | Retirement and post-retirement benefits
Accumulated other comprehensive income expected to be recognized as components of net expense during the next fiscal year [Abstract]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (1)	$ 0

X

- Definition

The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan, recognized in other comprehensive income.

+ References

No definition available.

+ Details

Name:	a_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetActuarialGainLossBeforeTax
Namespace Prefix:	a_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income from prior service cost (credit) of defined benefit plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580

+ Details

Name:	us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (s)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (s)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

+ Details

Name:	us-gaap_DefinedBenefitPlanFundedStatusOfPlan
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (i-k)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=a_EmployeecompensationandbenefitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=a_RetirementandpostretirementbenefitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_DefinedBenefitPostretirementHealthCoverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: