BASIS OF PRESENTATION (Policies)	6 Months Ended
Jun. 30, 2023
Accounting Policies [Abstract]
Basis of Accounting	The Unaudited Condensed Consolidated Financial Statements include all accounts of the Company and its wholly-owned and majority-owned subsidiaries in which it has control. Inter-company accounts and transactions have been eliminated. Related party transactions between the Company and its equity method investees have not been eliminated. Non-controlling interest represents a non-controlling investor's interests in the results of subsidiaries that the Company controls and consolidates.
Recently Issued and Adopted Accounting Pronouncements	The Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") is the sole source of authoritative U.S. GAAP other than SEC issued rules and regulations that apply only to SEC registrants. The FASB issues Accounting Standards Updates ("ASU") to communicate changes to the codification. The Company considers the applicability and impact of all ASUs. ASUs pending adoption were assessed and determined to be either not applicable or are not expected to have a material impact on the accompanying Unaudited Condensed Consolidated Financial Statements.
Fair Value Measurements	ASC 820, Fair Value Measurement ("ASC 820"), defines fair value as the price that would be received if an asset is sold or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 also establishes a three-level fair value hierarchy that prioritizes information used in developing assumptions when pricing an asset or liability as follows: •Level 1: Observable inputs such as quoted prices in active markets; •Level 2: Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and •Level 3: Unobservable inputs where there is little or no market data, which requires the reporting entity to develop its own assumptions. ASC 820 requires the use of observable market data, when available, in making fair value measurements. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement. In the normal course of business, the Company is exposed to certain risks arising from business operations and economic factors, including foreign currency and commodity price risk. These exposures are managed through operational strategies and the use of undesignated hedging contracts. The Company's derivative assets and liabilities are measured at fair value on a recurring basis using internal models based on observable market inputs, such as forward, interest, contract and discount rates with changes in fair value reported in Other income (expense), net in the accompanying Unaudited Condensed Consolidated Statement of Operations. In connection with the TCC acquisition, the Company funded a portion of the Yen-denominated purchase price with cash on hand by entering into cross currency swaps with SMBC Capital Markets, Inc., as syndication swap arranger, and certain other financial institutions. The cross currency swaps are measured at fair value on a recurring basis using observable market inputs, such as forward, discount and interest rates as well as credit default swap spreads. The Company designated the cross currency swaps as a partial hedge of its investment in certain subsidiaries whose functional currency is the Japanese Yen in order to manage foreign currency translation risk. As a result, changes in the fair value of the swaps are recorded in Equity in the accompanying Unaudited Condensed Consolidated Balance Sheet. The remaining portion of the Yen-denominated purchase price was funded by the Japanese Term Loan Facility. The carrying value of the facility is translated on a recurring basis using the exchange rate at the end of the applicable period and approximates its fair value. The Company designated the Japanese Term Loan Facility as a partial hedge of its investment in certain subsidiaries whose functional currency is the Japanese Yen in order to manage foreign currency translation risk. As a result, changes in the carrying value of the Japanese Term Loan Facility associated with foreign exchange rate movements are recorded in Equity in the Unaudited Condensed Consolidated Balance Sheet. In connection with the proposed acquisition of the VCS Business, the Company entered into window forward contracts with Bank of America N.A. and JPMorgan Chase Bank N.A. to mitigate the foreign currency risk of the expected cash outflows associated with the Euro-denominated purchase price. The instruments have an aggregate notional amount of €7 billion and a settlement window between November 28, 2023 and February 27, 2024. The window forward contracts are measured at fair value on a recurring basis using observable market inputs, such as forward, discount and interest rates with changes in fair value reported in Other income (expense), net in the accompanying Unaudited Condensed Consolidated Statement of Operations. During the three months ended June 30, 2023, the Company recognized a $111 million loss on the mark-to-market valuation of its window forward contracts.The fair value of the Company's long-term debt is measured based on observable market inputs which are considered Level 1 within the fair value hierarchy. The carrying value of cash and cash equivalents, accounts receivable, accounts payable and short-term borrowings approximate fair value due to the short-term nature of these accounts and would be classified as Level 1 in the fair value hierarchy. The Company's financing leases and project financing obligations, included in Long-term debt and Current portion of long-term debt on the accompanying Unaudited Condensed Consolidated Balance Sheet, approximate fair value and are classified as Level 3 in the fair value hierarchy.
Product Warranties	In the ordinary course of business, the Company provides standard warranty coverage on its products. Provisions for these amounts are established at the time of sale and estimated primarily based on product warranty terms and historical claims experience. In addition, the Company incurs discretionary costs to service its products in connection with specific product performance issues. Provisions for these amounts are established when they are known and estimable. The Company assesses the adequacy of its initial provisions and will make adjustments as necessary based on known or anticipated claims or as new information becomes available that suggests it is probable that future costs will be different than estimated amounts. Amounts associated with these provisions are classified on the accompanying Unaudited Condensed Consolidated Balance Sheet as Accrued liabilities or Other long-term liabilities based on their anticipated settlement date.
Revenue Recognition	The Company accounts for revenue in accordance with ASC 606: Revenue from Contracts with Customers. Revenue is recognized when control of a good or service promised in a contract (i.e., performance obligation) is transferred to a customer. Control is obtained when a customer has the ability to direct the use of and obtain substantially all of the remaining benefits from that good or service. A significant portion of the Company's performance obligations are recognized at a point-in-time when control of the product transfers to the customer, which is generally at the time of shipment. The remaining portion of the Company’s performance obligations are recognized over time as the customer simultaneously obtains control as the Company performs work under a contract, or if the product being produced for the customer has no alternative use and the Company has a contractual right to payment.The timing of revenue recognition, billings and cash collections results in contract assets and contract liabilities. Contract assets relate to the conditional right to consideration for any completed performance under a contract when costs are incurred in excess of billings under the percentage-of-completion methodology. Contract liabilities relate to payments received in advance of performance under a contract or when the Company has a right to consideration that is conditioned upon transfer of a good or service to a customer. Contract liabilities are recognized as revenue as (or when) the Company performs under the contract.
Commitments and Contingent Liabilities	The Company is involved in various litigation, claims and administrative proceedings, including those related to environmental (including asbestos) and legal matters. In accordance with ASC 450, Contingencies, the Company records accruals for loss contingencies when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These accruals are generally based upon a range of possible outcomes. If no amount within the range is a better estimate than any other, the Company accrues the minimum amount. In addition, these estimates are reviewed periodically and adjusted to reflect additional information when it becomes available. The Company is unable to predict the final outcome of the following matters based on the information currently available, except as otherwise noted. However, the Company does not believe that the resolution of any of these matters will have a material adverse effect upon its results of operations, cash flows or financial condition. Environmental Matters The Company’s operations are subject to environmental regulation by various authorities. The Company has accrued for the costs of environmental remediation activities, including but not limited to investigatory, remediation, operating and maintenance costs and performance guarantees. The most likely cost to be incurred is accrued based on an evaluation of currently available facts with respect to individual sites, including the technology required to remediate, current laws and regulations and prior remediation experience. For sites with multiple responsible parties, the Company considers its likely proportionate share of the anticipated remediation costs and the ability of other parties to fulfill their obligations in establishing a provision for these costs. Accrued environmental liabilities are not reduced by potential insurance reimbursements and are undiscounted. Asbestos Matters The Company has been named as a defendant in lawsuits alleging personal injury as a result of exposure to asbestos allegedly integrated into certain Carrier products or business premises. While the Company has never manufactured asbestos and no longer incorporates it into any currently-manufactured products, certain products that the Company no longer manufactures contained components incorporating asbestos. A substantial majority of these asbestos-related claims have been dismissed without payment or have been covered in full or in part by insurance or other forms of indemnity. Additional cases were litigated and settled without any insurance reimbursement.The amounts recorded for asbestos-related liabilities are based on currently available information and assumptions that the Company believes are reasonable and are made with input from outside actuarial experts. These amounts are undiscounted and exclude the Company’s legal fees to defend the asbestos claims, which are expensed as incurred. In addition, the Company has recorded insurance recovery receivables for probable asbestos-related recoveries.

BASIS OF PRESENTATION (Policies)

6 Months Ended

Jun. 30, 2023

The Unaudited Condensed Consolidated Financial Statements include all accounts of the Company and its wholly-owned and majority-owned subsidiaries in which it has control. Inter-company accounts and transactions have been eliminated. Related party transactions between the Company and its equity method investees have not been eliminated. Non-controlling interest represents a non-controlling investor's interests in the results of subsidiaries that the Company controls and consolidates.

Recently Issued and Adopted Accounting Pronouncements

The Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") is the sole source of authoritative U.S. GAAP other than SEC issued rules and regulations that apply only to SEC registrants. The FASB issues Accounting Standards Updates ("ASU") to communicate changes to the codification. The Company considers the applicability and impact of all ASUs. ASUs pending adoption were assessed and determined to be either not applicable or are not expected to have a material impact on the accompanying Unaudited Condensed Consolidated Financial Statements.

Fair Value Measurements

ASC 820, Fair Value Measurement ("ASC 820"), defines fair value as the price that would be received if an asset is sold or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 also establishes a three-level fair value hierarchy that prioritizes information used in developing assumptions when pricing an asset or liability as follows:

•Level 1: Observable inputs such as quoted prices in active markets;

•Level 2: Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

•Level 3: Unobservable inputs where there is little or no market data, which requires the reporting entity to develop its own assumptions.

ASC 820 requires the use of observable market data, when available, in making fair value measurements. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement.

In the normal course of business, the Company is exposed to certain risks arising from business operations and economic factors, including foreign currency and commodity price risk. These exposures are managed through operational strategies and the use of undesignated hedging contracts. The Company's derivative assets and liabilities are measured at fair value on a recurring basis using internal models based on observable market inputs, such as forward, interest, contract and discount rates with changes in fair value reported in Other income (expense), net in the accompanying Unaudited Condensed Consolidated Statement of Operations.

In connection with the TCC acquisition, the Company funded a portion of the Yen-denominated purchase price with cash on hand by entering into cross currency swaps with SMBC Capital Markets, Inc., as syndication swap arranger, and certain other financial institutions. The cross currency swaps are measured at fair value on a recurring basis using observable market inputs, such as forward, discount and interest rates as well as credit default swap spreads. The Company designated the cross currency swaps as a partial hedge of its investment in certain subsidiaries whose functional currency is the Japanese Yen in order to manage foreign currency translation risk. As a result, changes in the fair value of the swaps are recorded in Equity in the accompanying Unaudited Condensed Consolidated Balance Sheet.

The remaining portion of the Yen-denominated purchase price was funded by the Japanese Term Loan Facility. The carrying value of the facility is translated on a recurring basis using the exchange rate at the end of the applicable period and approximates its fair value. The Company designated the Japanese Term Loan Facility as a partial hedge of its investment in certain subsidiaries whose functional currency is the Japanese Yen in order to manage foreign currency translation risk. As a result, changes in the carrying value of the Japanese Term Loan Facility associated with foreign exchange rate movements are recorded in Equity in the Unaudited Condensed Consolidated Balance Sheet.

In connection with the proposed acquisition of the VCS Business, the Company entered into window forward contracts with Bank of America N.A. and JPMorgan Chase Bank N.A. to mitigate the foreign currency risk of the expected cash outflows associated with the Euro-denominated purchase price. The instruments have an aggregate notional amount of €7 billion and a settlement window between November 28, 2023 and February 27, 2024. The window forward contracts are measured at fair value on a recurring basis using observable market inputs, such as forward, discount and interest rates with changes in fair value reported in Other income (expense), net in the accompanying Unaudited Condensed Consolidated Statement of Operations. During the three months ended June 30, 2023, the Company recognized a $111 million loss on the mark-to-market valuation of its window forward contracts.The fair value of the Company's long-term debt is measured based on observable market inputs which are considered Level 1 within the fair value hierarchy. The carrying value of cash and cash equivalents, accounts receivable, accounts payable and short-term borrowings approximate fair value due to the short-term nature of these accounts and would be classified as Level 1 in the fair value hierarchy. The Company's financing leases and project financing obligations, included in Long-term debt and Current portion of long-term debt on the accompanying Unaudited Condensed Consolidated Balance Sheet, approximate fair value and are classified as Level 3 in the fair value hierarchy.

Product Warranties

In the ordinary course of business, the Company provides standard warranty coverage on its products. Provisions for these amounts are established at the time of sale and estimated primarily based on product warranty terms and historical claims experience. In addition, the Company incurs discretionary costs to service its products in connection with specific product performance issues. Provisions for these amounts are established when they are known and estimable. The Company assesses the adequacy of its initial provisions and will make adjustments as necessary based on known or anticipated claims or as new information becomes available that suggests it is probable that future costs will be different than estimated amounts. Amounts associated with these provisions are classified on the accompanying Unaudited Condensed Consolidated Balance Sheet as Accrued liabilities or Other long-term liabilities based on their anticipated settlement date.

Revenue Recognition

The Company accounts for revenue in accordance with ASC 606: Revenue from Contracts with Customers. Revenue is recognized when control of a good or service promised in a contract (i.e., performance obligation) is transferred to a customer. Control is obtained when a customer has the ability to direct the use of and obtain substantially all of the remaining benefits from that good or service. A significant portion of the Company's performance obligations are recognized at a point-in-time when control of the product transfers to the customer, which is generally at the time of shipment. The remaining portion of the Company’s performance obligations are recognized over time as the customer simultaneously obtains control as the Company performs work under a contract, or if the product being produced for the customer has no alternative use and the Company has a contractual right to payment.The timing of revenue recognition, billings and cash collections results in contract assets and contract liabilities. Contract assets relate to the conditional right to consideration for any completed performance under a contract when costs are incurred in excess of billings under the percentage-of-completion methodology. Contract liabilities relate to payments received in advance of performance under a contract or when the Company has a right to consideration that is conditioned upon transfer of a good or service to a customer. Contract liabilities are recognized as revenue as (or when) the Company performs under the contract.

Commitments and Contingent Liabilities

The Company is involved in various litigation, claims and administrative proceedings, including those related to environmental (including asbestos) and legal matters. In accordance with ASC 450, Contingencies, the Company records accruals for loss contingencies when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These accruals are generally based upon a range of possible outcomes. If no amount within the range is a better estimate than any other, the Company accrues the minimum amount. In addition, these estimates are reviewed periodically and adjusted to reflect additional information when it becomes available. The Company is unable to predict the final outcome of the following matters based on the information currently available, except as otherwise noted. However, the Company does not believe that the resolution of any of these matters will have a material adverse effect upon its results of operations, cash flows or financial condition.

Environmental Matters

The Company’s operations are subject to environmental regulation by various authorities. The Company has accrued for the costs of environmental remediation activities, including but not limited to investigatory, remediation, operating and maintenance costs and performance guarantees. The most likely cost to be incurred is accrued based on an evaluation of currently available facts with respect to individual sites, including the technology required to remediate, current laws and regulations and prior remediation experience.

For sites with multiple responsible parties, the Company considers its likely proportionate share of the anticipated remediation costs and the ability of other parties to fulfill their obligations in establishing a provision for these costs. Accrued environmental liabilities are not reduced by potential insurance reimbursements and are undiscounted.

Asbestos Matters

The Company has been named as a defendant in lawsuits alleging personal injury as a result of exposure to asbestos allegedly integrated into certain Carrier products or business premises. While the Company has never manufactured asbestos and no longer incorporates it into any currently-manufactured products, certain products that the Company no longer manufactures contained components incorporating asbestos. A substantial majority of these asbestos-related claims have been dismissed without payment or have been covered in full or in part by insurance or other forms of indemnity. Additional cases were litigated and settled without any insurance reimbursement.The amounts recorded for asbestos-related liabilities are based on currently available information and assumptions that the Company believes are reasonable and are made with input from outside actuarial experts. These amounts are undiscounted and exclude the Company’s legal fees to defend the asbestos claims, which are expensed as incurred. In addition, the Company has recorded insurance recovery receivables for probable asbestos-related recoveries.