Correction of Errors and Restatement - Summary of Previously Stated and Corrected Balances of Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Current assets
Inventories	$ 381.1us-gaap_InventoryNet	$ 374.4us-gaap_InventoryNet
Trade accounts receivable, less allowance	501.3us-gaap_AccountsReceivableNetCurrent	481.9us-gaap_AccountsReceivableNetCurrent
Deferred tax assets	29.0us-gaap_DeferredTaxAssetsNetCurrent	29.8us-gaap_DeferredTaxAssetsNetCurrent
Prepaid expenses and other current assets	129.7us-gaap_OtherAssetsCurrent	131.8us-gaap_OtherAssetsCurrent
Total current assets	1,154.7us-gaap_AssetsCurrent	1,100.3us-gaap_AssetsCurrent
Long-term assets
Goodwill	880.2us-gaap_Goodwill	998.4us-gaap_Goodwill	971.0us-gaap_Goodwill
Other intangible assets, net of amortization	166.5us-gaap_FiniteLivedIntangibleAssetsNet	185.2us-gaap_FiniteLivedIntangibleAssetsNet
Total long-term assets	1,219.7	1,389.2
Properties, plants and equipment
Machinery and equipment	1,500.8us-gaap_MachineryAndEquipmentGross	1,522.6us-gaap_MachineryAndEquipmentGross
Total properties, plants and equipment, net	1,293.0us-gaap_PropertyPlantAndEquipmentNet	1,397.2us-gaap_PropertyPlantAndEquipmentNet
Total assets	3,667.4us-gaap_Assets	3,886.7us-gaap_Assets
Current liabilities
Other current liabilities	189.1us-gaap_OtherLiabilitiesCurrent	186.5us-gaap_OtherLiabilitiesCurrent
Total current liabilities	851.7us-gaap_LiabilitiesCurrent	809.4us-gaap_LiabilitiesCurrent
Long-term liabilities
Deferred tax liabilities	219.0	246.4
Other long-term liabilities	89.5us-gaap_OtherLiabilitiesNoncurrent	99.5us-gaap_OtherLiabilitiesNoncurrent
Total long-term liabilities	1,592.5us-gaap_LiabilitiesNoncurrent	1,697.4us-gaap_LiabilitiesNoncurrent
Shareholders' equity
Retained earnings	1,411.7	1,418.8
Accumulated Other Comprehensive Income (Loss)	(274.4)	(152.6)	(191.7)
Total Greif, Inc. shareholders' equity	1,142.1us-gaap_StockholdersEquity	1,264.6us-gaap_StockholdersEquity
Noncontrolling interests	81.1us-gaap_MinorityInterest	115.3us-gaap_MinorityInterest
Shareholders' Equity	1,223.2	1,379.9	1,291.9	1,321.4
Total liabilities and shareholders' equity	3,667.4	3,886.7
As Reported [Member]
Current assets
Inventories		375.3
Trade accounts receivable, less allowance			453.8
Deferred tax assets		22.2	18.9
Prepaid expenses and other current assets		132.2	114.8
Total current assets		1,094.0	1,055.3
Long-term assets
Goodwill		1,003.5	976.1
Other intangible assets, net of amortization		180.8	198.6
Total long-term assets		1,389.9	1,373.2
Properties, plants and equipment
Machinery and equipment		1,523.7	1,472.6
Total properties, plants and equipment, net		1,398.3	1,424.9
Total assets		3,882.2	3,853.4
Current liabilities
Other current liabilities		178.8	187.9
Total current liabilities		801.7	867.3
Long-term liabilities
Deferred tax liabilities		238.1	197.0
Other long-term liabilities		92.9	117.0
Total long-term liabilities		1,682.5	1,675.3
Shareholders' equity
Retained earnings		1,443.8	1,394.8	1,370.1
Accumulated Other Comprehensive Income (Loss)		(159.0)	(196.0)	(143.6)
Total Greif, Inc. shareholders' equity		1,283.2	1,191.2
Noncontrolling interests		114.8	119.6	127.9
Shareholders' Equity		1,398.0	1,310.8	1,336.2
Total liabilities and shareholders' equity		3,882.2	3,853.4
Adjustments [Member]
Current assets
Inventories		(0.9)
Trade accounts receivable, less allowance			(0.2)
Deferred tax assets		7.6	6.6
Prepaid expenses and other current assets		(0.4)	(0.5)
Total current assets		6.3	5.9
Long-term assets
Goodwill		(5.1)	(5.1)
Other intangible assets, net of amortization		4.4	5.2
Total long-term assets		(0.7)	0.1
Properties, plants and equipment
Machinery and equipment		(1.1)	(3.5)
Total properties, plants and equipment, net		(1.1)	(3.5)
Total assets		4.5	2.5
Current liabilities
Other current liabilities		7.7	8.5
Total current liabilities		7.7	8.5
Long-term liabilities
Deferred tax liabilities		8.3	7.8
Other long-term liabilities		6.6	5.1
Total long-term liabilities		14.9	12.9
Shareholders' equity
Retained earnings		(25.0)	(22.6)	(18.5)
Accumulated Other Comprehensive Income (Loss)		6.4	4.3	4.3
Total Greif, Inc. shareholders' equity		(18.6)	(18.3)
Noncontrolling interests		0.5	(0.6)	(0.6)
Shareholders' Equity		(18.1)	(18.9)	(14.8)
Total liabilities and shareholders' equity		4.5	2.5
As Adjusted [Member]
Current assets
Inventories		374.4
Trade accounts receivable, less allowance			453.6
Deferred tax assets		29.8	25.5
Prepaid expenses and other current assets		131.8	114.3
Total current assets		1,100.3	1,061.2
Long-term assets
Goodwill		998.4	971.0
Other intangible assets, net of amortization		185.2	203.8
Total long-term assets		1,389.2	1,373.3
Properties, plants and equipment
Machinery and equipment		1,522.6	1,469.1
Total properties, plants and equipment, net		1,397.2	1,421.4
Total assets		3,886.7	3,855.9
Current liabilities
Other current liabilities		186.5	196.4
Total current liabilities		809.4	875.8
Long-term liabilities
Deferred tax liabilities		246.4	204.8
Other long-term liabilities		99.5	122.1
Total long-term liabilities		1,697.4	1,688.2
Shareholders' equity
Retained earnings		1,418.8	1,372.2	1,351.6
Accumulated Other Comprehensive Income (Loss)		(152.6)	(191.7)	(139.3)
Total Greif, Inc. shareholders' equity		1,264.6	1,172.9
Noncontrolling interests		115.3	119.0	127.3
Shareholders' Equity		1,379.9	1,291.9	1,321.4
Total liabilities and shareholders' equity		$ 3,886.7	$ 3,855.9

Assets non current excluding properties, plant and equipment.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

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-Section 45

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