SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
Jun. 30, 2023
Accounting Policies [Abstract]
Reclassifications	Certain prior year amounts are reclassified to conform to the current year presentation. Historically, the Company included Company-sponsored costs and costs that relate to contracts with customers for research and development projects as a component of Cost of products and services sold on the Consolidated Statement of Operations. Effective January 1, 2023, the Company began classifying Company-sponsored costs for research and development projects as a separate financial statement line item, titled Research and development expenses, on the Consolidated Statement of Operations and recast prior period results for this reclassification. This reclassification had no impact on the Company's net income, earnings per share, cash flows, segment reporting, or financial position. The Company revised historical periods to reflect this change in presentation.
Supply Chain Financing	The Company maintains agreements with third-party financial institutions that offer voluntary supply chain financing (SCF) programs to suppliers. The SCF programs enable suppliers, at their sole discretion, to sell their receivables to third-party financial institutions in order to receive payment on receivables earlier than the negotiated commercial terms between suppliers and the Company. Supplier sale of receivables to third-party financial institutions is on terms negotiated between the supplier and the respective third-party financial institution. The Company agrees on commercial terms for the goods and services procured from suppliers, including prices, quantities, and payment terms, which normally range between 60 and 120 days, regardless of whether the supplier elects to participate in the SCF programs. A suppliers’ voluntary participation in the SCF programs has no bearing on the Company's payment terms and the Company has no economic interest in a supplier’s decision to participate in the SCF programs. The Company agrees to pay participating third-party financial institutions the stated amount of confirmed invoices from suppliers on the original maturity dates of the invoices.
Recent Accounting Pronouncements	The Company considers the applicability and impact of all Accounting Standards Updates (ASUs) issued by the Financial Accounting Standards Board (FASB). ASUs not listed below were assessed and determined to be either not applicable or are expected to have minimal impact on the Company's Consolidated Financial Statements. In September 2022, the FASB issued ASU 2022-04, Liabilities—Supplier Finance Programs (Topic 405): Disclosure of Supplier Finance Program Obligations, to enhance the transparency of supplier finance programs. The new standard requires annual disclosure of the key terms of the program, a description of where in the financial statements amounts outstanding under the program are presented, a rollforward of such amounts, and interim disclosure of amounts outstanding as of the end of each period. The guidance does not affect recognition, measurement, or financial statement presentation of supplier finance programs. The ASU is effective on January 1, 2023, except for the rollforward, which is effective on January 1, 2024. The Company adopted this guidance on January 1, 2023, with the exception of the rollforward that will be effective beginning January 1, 2024. The adoption of this standard does not have a material impact on the Company’s Consolidated Financial Statements. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires contract assets and contract liabilities acquired in a business combination to be recognized and measured by the acquirer on the acquisition date in accordance with ASC 606, Revenue from Contracts with Customers. This ASU should be applied prospectively to acquisitions occurring on or after the effective date of December 15, 2022, and early adoption is permitted. The Company adopted this guidance on January 1, 2022. The adoption of this standard does not have a material impact on the Company’s Consolidated Financial Statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by the transition away from reference rates expected to be discontinued to alternative reference rates. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, to expand the scope of this guidance to include derivatives. The guidance was effective upon issuance and may be applied prospectively to contract modifications made and hedging relationships entered into on or before December 31, 2022. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which extends the period of time entities can utilize the reference rate reform relief guidance under ASU 2020-04 from December 31, 2022, to December 31, 2024. The Company will apply the guidance to impacted transactions during the transition period. The adoption of this standard does not have a material impact on the Company’s Consolidated Financial Statements.
Revenue Recognition and Contracts with Customers	Aerospace – A global supplier of products, software, and services for aircrafts that it sells to original equipment manufacturers (OEM) and other customers in a variety of end markets including: air transport, regional, business and general aviation aircraft, airlines, aircraft operators, and defense and space contractors. Aerospace products and services include auxiliary power units, propulsion engines, environmental control systems, integrated avionics, wireless connectivity services, electric power systems, engine controls, flight safety, communications, navigation hardware, data and software applications, radar and surveillance systems, aircraft lighting, management and technical services, advanced systems and instruments, satellite and space components, aircraft wheels and brakes, repair and overhaul services, and thermal systems. Aerospace also provides spare parts, repair, overhaul, and maintenance services (principally to aircraft operators) for the aftermarket. Honeywell Forge solutions are leveraged by the Company's customers as tools to turn data into predictive maintenance and predictive analytics to enable better fleet management and make flight operations more efficient. Honeywell Building Technologies – A global provider of products, software, solutions, and technologies that enable building owners and occupants to ensure their facilities are safe, energy efficient, sustainable, and productive. Honeywell Building Technologies products and services include advanced software applications for building control and optimization; sensors, switches, control systems, and instruments for energy management; access control; video surveillance; fire products; and installation, maintenance, and upgrades of systems. Honeywell Forge solutions enable the Company's customers to digitally manage buildings, connecting data from different assets to enable smart maintenance, improve building performance, and even protect from incoming security threats. Performance Materials and Technologies – A global provider in developing and manufacturing high-quality performance chemicals and materials, process technologies, and automation solutions. The reportable business segment is comprised of Process Solutions, UOP, and Advanced Materials. Process Solutions provides automation control, instrumentation, advanced software, and related services for the oil and gas, refining, pulp and paper, industrial power generation, chemicals and petrochemicals, biofuels, life sciences, and metals, minerals, and mining industries. Through its smart energy products, Process Solutions enables utilities and distribution companies to deploy advanced capabilities to improve operations, reliability, and environmental sustainability. UOP provides process technology, products, including catalysts and adsorbents, equipment, and consulting services that enable customers to efficiently produce gasoline, diesel, jet fuel, petrochemicals, and renewable fuels for the petroleum refining, gas processing, petrochemical, and other industries. Advanced Materials manufactures a wide variety of high-performance products, including materials used to manufacture end products such as bullet-resistant armor, nylon, computer chips, and pharmaceutical packaging, and provides reduced and low global warming potential materials based on hydrofluoro-olefin technology. In the industrial environment, Honeywell Forge solutions enable integration and connectivity to provide a holistic view of operations and turn data into clear actions to maximize productivity and efficiency. Honeywell Forge's cybersecurity capabilities help identify risks and act on cyber-related incidents, together enabling improved operations and protecting processes, people, and assets. Safety and Productivity Solutions – A global provider of products and software that improve productivity, workplace safety, and asset performance to customers around the globe. Sensing and Safety Technologies products include personal protective equipment (PPE), apparel, gear, and footwear; gas detection technology; custom-engineered sensors, switches, and controls for sensing and productivity solutions; and cloud-based notification and emergency messaging. Productivity Solutions and Services products and services include mobile devices and software for computing, data collection, and thermal printing; and software-based data and asset management productivity solutions. Warehouse and Workflow Solutions products and services include system design and simulation, automation solutions, performance optimization software, and lifecycle services to enable accuracy, productivity, and predictability of warehouse operations. Honeywell Forge solutions digitally automate processes to improve efficiency while reducing downtime and safety costs. Corporate and All Other – Corporate and All Other includes revenue from Honeywell's majority-owned investment in Quantinuum. Through Quantinuum, Honeywell provides a wide range of service offerings of fully integrated quantum computing hardware and software solutions. For a summary by disaggregated product and services sales for each reportable business segment, refer to Note 17 Segment Financial Data. The Company records progress on satisfying performance obligations under contracts with customers and the related billings and cash collections are recorded in the Consolidated Balance Sheet in Accounts receivable—net and Other assets (unbilled receivables (contract assets) and billed receivables) and Accrued liabilities and Other liabilities (customer advances and deposits (contract liabilities)). Unbilled receivables (contract assets) arise when the timing of cash collected from customers differs from the timing of revenue recognition, such as when contract provisions require specific milestones to be met before a customer can be billed. Contract assets are recognized when the revenue associated with the contract is recognized prior to billing and derecognized when billed in accordance with the terms of the contract. Contract liabilities are recorded when customers remit contractual cash payments in advance of the Company satisfying performance obligations under contractual arrangements, including those with performance obligations to be satisfied over a period of time. Contract liabilities are derecognized when revenue is recorded, either when a milestone is met triggering the contractual right to bill or when the performance obligation is satisfied. When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications for goods or services and not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification on the transaction price and the Company's measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation, which are recognized prospectively. PERFORMANCE OBLIGATIONS A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is defined as the unit of account. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. When the Company's contracts with customers require highly complex integration or manufacturing services that are not separately identifiable from other promises in the contracts and, therefore, not distinct, then the entire contract is accounted for as a single performance obligation. In situations when the Company's contracts include distinct goods or services that are substantially the same and have the same pattern of transfer to the customer over time, they are recognized as a series of distinct goods or services. For any contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation based on the estimated relative stand-alone selling price of each distinct good or service in the contract. For product sales, each product sold to a customer typically represents a distinct performance obligation. In such cases, the observable stand-alone sales are used to determine the stand-alone selling price. Performance obligations are satisfied as of a point in time or over time. Performance obligations are supported by contracts with customers, providing a framework for the nature of the distinct goods, services or bundle of goods and services. The timing of satisfying the performance obligation is typically indicated by the terms of the contract. Performance obligations recognized as of June 30, 2023, will be satisfied over the course of future periods. The Company's disclosure of the timing for satisfying the performance obligation is based on the requirements of contracts with customers. However, from time to time, these contracts may be subject to modifications, impacting the timing of satisfying the performance obligations. Performance obligations expected to be satisfied within one year and greater than one year are 59% and 41%, respectively. The timing of satisfaction of the Company's performance obligations does not significantly vary from the typical timing of payment. Typical payment terms of the Company's fixed price over time contracts include progress payments based on specified events or milestones or based on project progress. For some contracts, the Company may be entitled to receive an advance payment. The Company applied the practical expedient for certain revenue streams to exclude the value of remaining performance obligations for (i) contracts with an original expected term of one year or less or (ii) contracts for which the Company recognizes revenue in proportion to the amount the Company has the right to invoice for services performed.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

6 Months Ended

Jun. 30, 2023

Certain prior year amounts are reclassified to conform to the current year presentation.

Historically, the Company included Company-sponsored costs and costs that relate to contracts with customers for research and development projects as a component of Cost of products and services sold on the Consolidated Statement of Operations. Effective January 1, 2023, the Company began classifying Company-sponsored costs for research and development projects as a separate financial statement line item, titled Research and development expenses, on the Consolidated Statement of Operations and recast prior period results for this reclassification. This reclassification had no impact on the Company's net income, earnings per share, cash flows, segment reporting, or financial position. The Company revised historical periods to reflect this change in presentation.

Supply Chain Financing

The Company maintains agreements with third-party financial institutions that offer voluntary supply chain financing (SCF) programs to suppliers. The SCF programs enable suppliers, at their sole discretion, to sell their receivables to third-party financial institutions in order to receive payment on receivables earlier than the negotiated commercial terms between suppliers and the Company. Supplier sale of receivables to third-party financial institutions is on terms negotiated between the supplier and the respective third-party financial institution. The Company agrees on commercial terms for the goods and services procured from suppliers, including prices, quantities, and payment terms, which normally range between 60 and 120 days, regardless of whether the supplier elects to participate in the SCF programs. A suppliers’ voluntary participation in the SCF programs has no bearing on the Company's payment terms and the Company has no economic interest in a supplier’s decision to participate in the SCF programs. The Company agrees to pay participating third-party financial institutions the stated amount of confirmed invoices from suppliers on the original maturity dates of the invoices.

Recent Accounting Pronouncements

The Company considers the applicability and impact of all Accounting Standards Updates (ASUs) issued by the Financial Accounting Standards Board (FASB). ASUs not listed below were assessed and determined to be either not applicable or are expected to have minimal impact on the Company's Consolidated Financial Statements.

In September 2022, the FASB issued ASU 2022-04, Liabilities—Supplier Finance Programs (Topic 405): Disclosure of Supplier Finance Program Obligations, to enhance the transparency of supplier finance programs. The new standard requires annual disclosure of the key terms of the program, a description of where in the financial statements amounts outstanding under the program are presented, a rollforward of such amounts, and interim disclosure of amounts outstanding as of the end of each period. The guidance does not affect recognition, measurement, or financial statement presentation of supplier finance programs. The ASU is effective on January 1, 2023, except for the rollforward, which is effective on January 1, 2024. The Company adopted this guidance on January 1, 2023, with the exception of the rollforward that will be effective beginning January 1, 2024. The adoption of this standard does not have a material impact on the Company’s Consolidated Financial Statements.

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires contract assets and contract liabilities acquired in a business combination to be recognized and measured by the acquirer on the acquisition date in accordance with ASC 606, Revenue from Contracts with Customers. This ASU should be applied prospectively to acquisitions occurring on or after the effective date of December 15, 2022, and early adoption is permitted. The Company adopted this guidance on January 1, 2022. The adoption of this standard does not have a material impact on the Company’s Consolidated Financial Statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by the transition away from reference rates expected to be discontinued to alternative reference rates. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, to expand the scope of this guidance to include derivatives. The guidance was effective upon issuance and may be applied prospectively to contract modifications made and hedging relationships entered into on or before December 31, 2022. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which extends the period of time entities can utilize the reference rate reform relief guidance under ASU 2020-04 from December 31, 2022, to December 31, 2024. The Company will apply the guidance to impacted transactions during the transition period. The adoption of this standard does not have a material impact on the Company’s Consolidated Financial Statements.

Revenue Recognition and Contracts with Customers

Aerospace – A global supplier of products, software, and services for aircrafts that it sells to original equipment manufacturers (OEM) and other customers in a variety of end markets including: air transport, regional, business and general aviation aircraft, airlines, aircraft operators, and defense and space contractors. Aerospace products and services include auxiliary power units, propulsion engines, environmental control systems, integrated avionics, wireless connectivity services, electric power systems, engine controls, flight safety, communications, navigation hardware, data and software applications, radar and surveillance systems, aircraft lighting, management and technical services, advanced systems and instruments, satellite and space components, aircraft wheels and brakes, repair and overhaul services, and thermal systems. Aerospace also provides spare parts, repair, overhaul, and maintenance services (principally to aircraft operators) for the aftermarket. Honeywell Forge solutions are leveraged by the Company's customers as tools to turn data into predictive maintenance and predictive analytics to enable better fleet management and make flight operations more efficient.

Honeywell Building Technologies – A global provider of products, software, solutions, and technologies that enable building owners and occupants to ensure their facilities are safe, energy efficient, sustainable, and productive. Honeywell Building Technologies products and services include advanced software applications for building control and optimization; sensors, switches, control systems, and instruments for energy management; access control; video surveillance; fire products; and installation, maintenance, and upgrades of systems. Honeywell Forge solutions enable the Company's customers to digitally manage buildings, connecting data from different assets to enable smart maintenance, improve building performance, and even protect from incoming security threats.

Performance Materials and Technologies – A global provider in developing and manufacturing high-quality performance chemicals and materials, process technologies, and automation solutions. The reportable business segment is comprised of Process Solutions, UOP, and Advanced Materials. Process Solutions provides automation control, instrumentation, advanced software, and related services for the oil and gas, refining, pulp and paper, industrial power generation, chemicals and petrochemicals, biofuels, life sciences, and metals, minerals, and mining industries. Through its smart energy products, Process Solutions enables utilities and distribution companies to deploy advanced capabilities to improve operations, reliability, and environmental sustainability. UOP provides process technology, products, including catalysts and adsorbents, equipment, and consulting services that enable customers to efficiently produce gasoline, diesel, jet fuel, petrochemicals, and renewable fuels for the petroleum refining, gas processing, petrochemical, and other industries. Advanced Materials manufactures a wide variety of high-performance products, including materials used to manufacture end products such as bullet-resistant armor, nylon, computer chips, and pharmaceutical packaging, and provides reduced and low global warming potential materials based on hydrofluoro-olefin technology. In the industrial environment, Honeywell Forge solutions enable integration and connectivity to provide a holistic view of operations and turn data into clear actions to maximize productivity and efficiency. Honeywell Forge's cybersecurity capabilities help identify risks and act on cyber-related incidents, together enabling improved operations and protecting processes, people, and assets.

Safety and Productivity Solutions – A global provider of products and software that improve productivity, workplace safety, and asset performance to customers around the globe. Sensing and Safety Technologies products include personal protective equipment (PPE), apparel, gear, and footwear; gas detection technology; custom-engineered sensors, switches, and controls for sensing and productivity solutions; and cloud-based notification and emergency messaging. Productivity Solutions and Services products and services include mobile devices and software for computing, data collection, and thermal printing; and software-based data and asset management productivity solutions. Warehouse and Workflow Solutions products and services include system design and simulation, automation solutions, performance optimization software, and lifecycle services to enable accuracy, productivity, and predictability of warehouse operations. Honeywell Forge solutions digitally automate processes to improve efficiency while reducing downtime and safety costs.

Corporate and All Other – Corporate and All Other includes revenue from Honeywell's majority-owned investment in Quantinuum. Through Quantinuum, Honeywell provides a wide range of service offerings of fully integrated quantum computing hardware and software solutions.

For a summary by disaggregated product and services sales for each reportable business segment, refer to Note 17 Segment Financial Data.

The Company records progress on satisfying performance obligations under contracts with customers and the related billings and cash collections are recorded in the Consolidated Balance Sheet in Accounts receivable—net and Other assets (unbilled receivables (contract assets) and billed receivables) and Accrued liabilities and Other liabilities (customer advances and deposits (contract liabilities)). Unbilled receivables (contract assets) arise when the timing of cash collected from customers differs from the timing of revenue recognition, such as when contract provisions require specific milestones to be met before a customer can be billed. Contract assets are recognized when the revenue associated with the contract is recognized prior to billing and derecognized when billed in accordance with the terms of the contract. Contract liabilities are recorded when customers remit contractual cash payments in advance of the Company satisfying performance obligations under contractual arrangements, including those with performance obligations to be satisfied over a period of time. Contract liabilities are derecognized when revenue is recorded, either when a milestone is met triggering the contractual right to bill or when the performance obligation is satisfied.

When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications for goods or services and not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification on the transaction price and the Company's measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation, which are recognized prospectively.

PERFORMANCE OBLIGATIONS

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is defined as the unit of account. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. When the Company's contracts with customers require highly complex integration or manufacturing services that are not separately identifiable from other promises in the contracts and, therefore, not distinct, then the entire contract is accounted for as a single performance obligation. In situations when the Company's contracts include distinct goods or services that are substantially the same and have the same pattern of transfer to the customer over time, they are recognized as a series of distinct goods or services. For any contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation based on the estimated relative stand-alone selling price of each distinct good or service in the contract. For product sales, each product sold to a customer typically represents a distinct performance obligation. In such cases, the observable stand-alone sales are used to determine the stand-alone selling price.

Performance obligations are satisfied as of a point in time or over time. Performance obligations are supported by contracts with customers, providing a framework for the nature of the distinct goods, services or bundle of goods and services. The timing of satisfying the performance obligation is typically indicated by the terms of the contract.

Performance obligations recognized as of June 30, 2023, will be satisfied over the course of future periods. The Company's disclosure of the timing for satisfying the performance obligation is based on the requirements of contracts with customers. However, from time to time, these contracts may be subject to modifications, impacting the timing of satisfying the performance obligations. Performance obligations expected to be satisfied within one year and greater than one year are 59% and 41%, respectively.

The timing of satisfaction of the Company's performance obligations does not significantly vary from the typical timing of payment. Typical payment terms of the Company's fixed price over time contracts include progress payments based on specified events or milestones or based on project progress. For some contracts, the Company may be entitled to receive an advance payment.

The Company applied the practical expedient for certain revenue streams to exclude the value of remaining performance obligations for (i) contracts with an original expected term of one year or less or (ii) contracts for which the Company recognizes revenue in proportion to the amount the Company has the right to invoice for services performed.