Overview	3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]
Overview	NOTE A. OVERVIEW Overview Allison Transmission Holdings, Inc. and its subsidiaries (“Allison” or the “Company”) design and manufacture vehicle propulsion solutions, including commercial-duty on-highway, off-highway and defense fully automatic transmissions and electric hybrid and fully electric systems. The business was founded in 1915 and has been headquartered in Indianapolis, Indiana since inception. Allison is traded on the New York Stock Exchange under the symbol, “ALSN”. Although approximately 76% of revenues were generated in North America in 2021, the Company has a global presence by serving customers in Asia, Europe, South America and Africa. The Company serves customers through an independent network of approximately 1,400 independent distributor and dealer locations worldwide. During the first quarter of 2022, the COVID-19 pandemic continued to cause supply chain, labor and raw material constraints that created volatility in the Company's performance and impacted global markets and supply chains. As a result, the Company experienced, and expects to continue to experience, raw material and component part price inflation, increased freight and logistics costs and increased overtime expense as a result of labor shortages. In addition, despite increased customer demand the Company's net sales for the first quarter of 2022 were negatively impacted as a result of its customers’ inability to secure components from the broader commercial vehicle supply base which resulted in reduced commercial vehicle build schedules. The Company expects that commercial vehicle build schedules will continue to be negatively impacted by the availability of components. To limit the spread of variants and sub-variants of COVID-19, governments continue to take various actions that may impact the Company's employees, operations and supply base, including the administration or mandate of vaccinations, travel bans and restrictions, quarantines, curfews, stay-at-home orders, social distancing guidelines and business shutdowns and closures. The Company continues to take a variety of measures, when and where appropriate based on transmission rates and the presence of variants and sub-variants of COVID-19 in the locations in which it operates, to promote the safety and security of its employees and to maintain operations with as minimal impact as possible to our stakeholders.

Overview

3 Months Ended

Mar. 31, 2022

NOTE A. OVERVIEW

Overview

Allison Transmission Holdings, Inc. and its subsidiaries (“Allison” or the “Company”) design and manufacture vehicle propulsion solutions, including commercial-duty on-highway, off-highway and defense fully automatic transmissions and electric hybrid and fully electric systems. The business was founded in 1915 and has been headquartered in Indianapolis, Indiana since inception. Allison is traded on the New York Stock Exchange under the symbol, “ALSN”.

Although approximately 76% of revenues were generated in North America in 2021, the Company has a global presence by serving customers in Asia, Europe, South America and Africa. The Company serves customers through an independent network of approximately 1,400 independent distributor and dealer locations worldwide.

During the first quarter of 2022, the COVID-19 pandemic continued to cause supply chain, labor and raw material constraints that created volatility in the Company's performance and impacted global markets and supply chains. As a result, the Company experienced, and expects to continue to experience, raw material and component part price inflation, increased freight and logistics costs and increased overtime expense as a result of labor shortages. In addition, despite increased customer demand the Company's net sales for the first quarter of 2022 were negatively impacted as a result of its customers’ inability to secure components from the broader commercial vehicle supply base which resulted in reduced commercial vehicle build schedules. The Company expects that commercial vehicle build schedules will continue to be negatively impacted by the availability of components.

To limit the spread of variants and sub-variants of COVID-19, governments continue to take various actions that may impact the Company's employees, operations and supply base, including the administration or mandate of vaccinations, travel bans and restrictions, quarantines, curfews, stay-at-home orders, social distancing guidelines and business shutdowns and closures. The Company continues to take a variety of measures, when and where appropriate based on transmission rates and the presence of variants and sub-variants of COVID-19 in the locations in which it operates, to promote the safety and security of its employees and to maintain operations with as minimal impact as possible to our stakeholders.