Description of Business and Basis of Presentation	3 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]
Description of Business and Basis of Presentation	Description of Business and Basis of Presentation Description of Business - Energizer Holdings, Inc. and its subsidiaries (Energizer or the Company) is a global manufacturer, marketer and distributer of household batteries, specialty batteries and portable lights under the Energizer® and Eveready® brand names. Energizer offers batteries using lithium, alkaline, carbon zinc, nickel metal hydride, zinc air and silver oxide constructions. On July 1, 2016, Energizer expanded its portfolio of brands with an acquisition of a leading designer and marketer of automotive fragrance and appearance products (auto care acquisition). With the auto care acquisition, the Company's brands include Refresh Your Car!®, California Scents®, Driven®, Bahama & Co.®, LEXOL® and Eagle One®. Basis of Presentation - The accompanying unaudited Consolidated Condensed Financial Statements include the accounts of Energizer and its subsidiaries. All significant intercompany transactions are eliminated. Energizer has no material equity method investments, variable interests or non-controlling interests. The accompanying unaudited Consolidated Condensed Financial Statements have been prepared in accordance with Article 10 of Regulation S-X and do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. The year-end condensed Consolidated Balance Sheet was derived from the audited financial statements included in Energizer's Report on Form 10-K, but does not include all disclosures required by U.S. GAAP. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair statement of our operations, financial position and cash flows have been included. Certain reclassifications have been made to the prior year financial statements to conform to the current presentation. Operating results for any quarter are not necessarily indicative of the results for any other quarter or for the full year. These statements should be read in conjunction with the financial statements and notes thereto for Energizer for the year ended September 30, 2017 included in the Annual Report on Form 10-K dated November 14, 2017. Recently Adopted Accounting Pronouncements - During the quarter ended December 31, 2017, the Company adopted ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This update requires the service component of the net periodic pension cost to be reported in the same income statement line item as similar compensation costs, while all other pension cost components should be reported separately from the service cost component on the income statement. The adoption of this update resulted in $1.7 of non-compensation related pension benefit in Other items, net in the quarter ended December 31, 2017 and a reclassification of $3.1 of pension benefit out of Selling, general and administrative expense and into Other items, net for the quarter ended December 31, 2016. All non-compensation related pension costs will be recorded in Other items, net going forward. During the quarter ended December 31, 2017, the Company adopted ASU 2015-11, Inventory (Topic 330), which aligns the measurement of inventory under GAAP more closely with International Financial Reporting Standards. Under the new guidance, an entity that measures inventory using the first-in, first-out or average cost should measure inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The impact of adoption was immaterial. During the quarter ended December 31, 2017, the Company early adopted ASU 2016-16, Intra-entity Transfers of Assets Other Than Inventory. This update requires tax expense to be recognized from the sale of intra-entity assets, other than inventory, when the transfer occurs, even though the effects of the transaction are eliminated in consolidation. Under the previous guidance, the tax effects of transfers would have been deferred until the transferred asset was sold or otherwise recovered through use. Upon adoption, any deferred charge previously established upon the intra-company transfer is recorded as a cumulative effect adjustment to retained earnings. During the quarter ended December 31, 2017, a deferred charge of $59.2 was removed from Other assets and recorded as an adjustment to retained earnings. Any future tax impacts will be recognized as incurred. During the quarter ended December 31, 2017, the Company early adopted ASU 2017-01, Clarifying the Definition of a Business. This update creates a more practical definition and guidelines to determine whether a set of assets and activities is a business. This simplifies the decision making process of determining whether a purchase constitutes a business combination or an acquisition of assets and the Company will apply this definition for future acquisitions. During the quarter ended December 31, 2017, the Company early adopted ASU 2017-04, Simplifying the Test for Goodwill Impairment. This update eliminates the need to assign the fair value of a reporting unit to each of its assets and liabilities when quantifying an impairment charge. The impairment charge is now determined based on the comparison of the fair value of a reporting unit to its carrying amount. The Company will apply the new guidance when completing its goodwill testing procedures in the current year. Recently Issued Accounting Pronouncements - On May 28, 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which provides a single comprehensive revenue recognition model for all contracts with customers to improve comparability within industries, across industries and across capital markets. On August 12, 2015, the FASB issued a one-year deferral of the effective date. This update is effective for Energizer beginning October 1, 2018. The Company is currently assessing the new guidance against its current accounting policies and procedures, through activities that include analysis of standard sales transactions and terms, coordination and discussion with our commercial teams and reviewing contracts with customers. The Company plans to adopt this update on a modified retrospective basis at the effective date. While the Company’s assessment is not yet complete, the new guidance is not expected to have a material impact on the Company’s consolidated financial position, results of operations or cash flows. The Company is still assessing the overall impact on the Company’s disclosures. On February 25, 2016, the FASB issued ASU 2016-02, Leases. This update aligns the measurement of leases under GAAP more closely with International Financial Reporting Standards by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The amendments in this update will be effective for Energizer beginning October 1, 2019 with early adoption permitted. Energizer is in the process of evaluating the impact the revised guidance will have on its financial statements. On August 26, 2016, the FASB issued ASU 2016-15, Statement of Cash Flows- Classification of Certain Cash Receipts and Cash Payments, which is intended to reduce diversity in practice in how certain transactions are classified in the statements of cash flows. This update will be effective for Energizer beginning October 1, 2018. The Company is currently assessing the impact the revised guidance will have on our current classification on the Statement of Cash Flows. On August 28, 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities. This update intends to simplify hedge accounting and decrease complexity for both the preparation and understanding of hedging disclosures in the financial statements. This update is effective for the Company beginning October 1, 2019. The Company is currently assessing the impact the revised guidance will have on its accounting practices and financial statements.

Description of Business and Basis of Presentation

Description of Business - Energizer Holdings, Inc. and its subsidiaries (Energizer or the Company) is a global manufacturer, marketer and distributer of household batteries, specialty batteries and portable lights under the Energizer® and Eveready® brand names. Energizer offers batteries using lithium, alkaline, carbon zinc, nickel metal hydride, zinc air and silver oxide constructions. On July 1, 2016, Energizer expanded its portfolio of brands with an acquisition of a leading designer and marketer of automotive fragrance and appearance products (auto care acquisition). With the auto care acquisition, the Company's brands include Refresh Your Car!®, California Scents®, Driven®, Bahama & Co.®, LEXOL® and Eagle One®.

Basis of Presentation - The accompanying unaudited Consolidated Condensed Financial Statements include the accounts of Energizer and its subsidiaries. All significant intercompany transactions are eliminated. Energizer has no material equity method investments, variable interests or non-controlling interests.

The accompanying unaudited Consolidated Condensed Financial Statements have been prepared in accordance with Article 10 of Regulation S-X and do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. The year-end condensed Consolidated Balance Sheet was derived from the audited financial statements included in Energizer's Report on Form 10-K, but does not include all disclosures required by U.S. GAAP. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair statement of our operations, financial position and cash flows

have been included. Certain reclassifications have been made to the prior year financial statements to conform to the current presentation. Operating results for any quarter are not necessarily indicative of the results for any other quarter or for the full year. These statements should be read in conjunction with the financial statements and notes thereto for Energizer for the year ended September 30, 2017 included in the Annual Report on Form 10-K dated November 14, 2017.

Recently Adopted Accounting Pronouncements - During the quarter ended December 31, 2017, the Company adopted ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This update requires the service component of the net periodic pension cost to be reported in the same income statement line item as similar compensation costs, while all other pension cost components should be reported separately from the service cost component on the income statement. The adoption of this update resulted in $1.7 of non-compensation related pension benefit in Other items, net in the quarter ended December 31, 2017 and a reclassification of $3.1 of pension benefit out of Selling, general and administrative expense and into Other items, net for the quarter ended December 31, 2016. All non-compensation related pension costs will be recorded in Other items, net going forward.

During the quarter ended December 31, 2017, the Company adopted ASU 2015-11, Inventory (Topic 330), which aligns the measurement of inventory under GAAP more closely with International Financial Reporting Standards. Under the new guidance, an entity that measures inventory using the first-in, first-out or average cost should measure inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The impact of adoption was immaterial.

During the quarter ended December 31, 2017, the Company early adopted ASU 2016-16, Intra-entity Transfers of Assets Other Than Inventory. This update requires tax expense to be recognized from the sale of intra-entity assets, other than inventory, when the transfer occurs, even though the effects of the transaction are eliminated in consolidation. Under the previous guidance, the tax effects of transfers would have been deferred until the transferred asset was sold or otherwise recovered through use. Upon adoption, any deferred charge previously established upon the intra-company transfer is recorded as a cumulative effect adjustment to retained earnings. During the quarter ended December 31, 2017, a deferred charge of $59.2 was removed from Other assets and recorded as an adjustment to retained earnings. Any future tax impacts will be recognized as incurred.

During the quarter ended December 31, 2017, the Company early adopted ASU 2017-01, Clarifying the Definition of a Business. This update creates a more practical definition and guidelines to determine whether a set of assets and activities is a business. This simplifies the decision making process of determining whether a purchase constitutes a business combination or an acquisition of assets and the Company will apply this definition for future acquisitions.

During the quarter ended December 31, 2017, the Company early adopted ASU 2017-04, Simplifying the Test for Goodwill Impairment. This update eliminates the need to assign the fair value of a reporting unit to each of its assets and liabilities when quantifying an impairment charge. The impairment charge is now determined based on the comparison of the fair value of a reporting unit to its carrying amount. The Company will apply the new guidance when completing its goodwill testing procedures in the current year.

Recently Issued Accounting Pronouncements - On May 28, 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which provides a single comprehensive revenue recognition model for all contracts with customers to improve comparability within industries, across industries and across capital markets. On August 12, 2015, the FASB issued a one-year deferral of the effective date. This update is effective for Energizer beginning October 1, 2018. The Company is currently assessing the new guidance against its current accounting policies and procedures, through activities that include analysis of standard sales transactions and terms, coordination and discussion with our commercial teams and reviewing contracts with customers. The Company plans to adopt this update on a modified retrospective basis at the effective date. While the Company’s assessment is not yet complete, the new guidance is not expected to have a material impact on the Company’s consolidated financial position, results of operations or cash flows. The Company is still assessing the overall impact on the Company’s disclosures.

On February 25, 2016, the FASB issued ASU 2016-02, Leases. This update aligns the measurement of leases under GAAP more closely with International Financial Reporting Standards by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The amendments in this update will be effective for Energizer beginning October 1, 2019 with early adoption permitted. Energizer is in the process of evaluating the impact the revised guidance will have on its financial statements.

On August 26, 2016, the FASB issued ASU 2016-15, Statement of Cash Flows- Classification of Certain Cash Receipts and Cash Payments, which is intended to reduce diversity in practice in how certain transactions are classified in the statements of cash flows. This update will be effective for Energizer beginning October 1, 2018. The Company is currently assessing the impact the revised guidance will have on our current classification on the Statement of Cash Flows.

On August 28, 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities. This update intends to simplify hedge accounting and decrease complexity for both the preparation and understanding of hedging disclosures in the financial statements. This update is effective for the Company beginning October 1, 2019. The Company is currently assessing the impact the revised guidance will have on its accounting practices and financial statements.