Organization, Consolidation and Presentation of Financial Statements	9 Months Ended
Sep. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization, Operations and Basis of Presentation	Note 1. Organization, Operations and Basis of Presentation Business Description Resideo Technologies, Inc. (“Resideo” or “the Company”), referred to in the Information Statement as Homes and ADI Global Distribution business of Honeywell International Inc., is a leading global provider of products, software, solutions and technologies that help owners of homes stay connected and in control of their comfort, security and energy use. We are a leader in the home heating, ventilation and air conditioning controls and security markets, and a leading global distributor of security and fire protection products. The Company was incorporated in Delaware on April 24, 2018. The Company separated from Honeywell International Inc. (“Honeywell” or the “Parent”) on October 29, 2018, becoming an independent publicly traded company as a result of a pro rata distribution of the Company’s common stock to shareholders of Honeywell (the “Spin-Off”). The Information Statement was declared effective by the SEC on October 3, 2018. On October 29, 2018, Honeywell’s shareholders of record as of October 16, 2018 (the “Record Date”) received one share of the Company’s common stock, par value $0.001 per share, for every six shares of Honeywell’s common stock, par value $1.00 per share, held as of the Record Date, and cash for any fractional shares of the Company’s common stock. The Company began trading “regular way” under the ticker symbol “REZI” on the New York Stock Exchange on October 29, 2018. References to the Company throughout these Combined Interim Financial Statements are made using the first person notations of “we,” “us” or “our.” Basis of Presentation These accompanying Combined Interim Financial Statements have been prepared on a carve-out basis and are derived from Honeywell’s Consolidated Financial Statements and underlying accounting records as if the Company had been a part of Honeywell for all periods presented. As noted above, the Spin-Off of Resideo was not effective until after the conclusion of the three and nine month financial reporting periods presented herein. The unaudited Combined Interim Financial Statements reflect the Company’s financial position, results of operations and cash flows as the business was operated as part of Honeywell prior to the distribution, in conformity with Generally Accepted Accounting Principles in the United States (“U.S. GAAP”).The Combined Interim Financial Statements are unaudited; however, in the opinion of management, they contain all the adjustments (consisting of those of a normal recurring nature) considered necessary to state fairly the financial position, results of operations and cash flows for the periods presented in conformity with U.S. GAAP applicable to interim periods. The unaudited Combined Interim Financial Statements should be read in conjunction with the audited Combined Financial Statements of the Company included in the Information Statement. The results of operations for the three and nine months ended September 30, 2018 and the cash flows for the nine months ended September 30, 2018 should not necessarily be taken as indicative of the entire year. All intracompany transactions have been eliminated. As described in Note 3. Related Party Transactions with Honeywell, all significant transactions between the Company and Honeywell have been included in these unaudited Combined Interim Financial Statements and were settled in October for cash prior to the Spin-Off. These transactions are reflected in the Combined Interim Balance Sheet as Due from related parties, current or Due to related parties, current. In the Combined Interim Statements of Cash Flows, the cash flows related to related party notes receivables presented in the Combined Interim Balance Sheet in Due from related parties, current are reflected as investing activities since these balances represent amounts loaned to Parent. The cash flows related to related party notes payables presented in the Combined Interim Balance Sheet in Due to related parties, current are reflected as financing activities since these balances represent amounts financed by Parent. Honeywell uses a centralized approach to cash management and financing of its operations. Historically, the majority of the Company’s cash was transferred to Honeywell daily and Honeywell funded the Company’s operating and investing activities as needed. This arrangement is not reflective of the manner in which the Company would have been able to finance its operations had it been a stand-alone business separate from Honeywell during the periods presented. Cash transfers to and from Honeywell’s cash management accounts are reflected in the Combined Interim Balance Sheet as Due to and Due from related parties, current and in the Combined Interim Statements of Cash Flows as net financing activities. The unaudited Combined Interim Financial Statements include certain assets and liabilities that have historically been held at the Honeywell corporate level but are specifically identifiable or otherwise attributable to the Company. The cash and cash equivalents held by Honeywell at the corporate level were not specifically identifiable to the Company and therefore were not attributed for any of the periods presented. Honeywell third-party debt and the related interest expense were not allocated for any of the periods presented as Honeywell’s borrowings were not directly attributable to the Company. Historically, Honeywell provided certain services, such as legal, accounting, information technology, human resources and other infrastructure support, on behalf of the Company. The cost of these services has been allocated to the Company on the basis of the proportion of revenues. The Company and Honeywell consider these allocations to be a reasonable reflection of the benefits received by the Company. However, the financial information presented in these unaudited Combined Interim Financial Statements may not reflect the combined financial position, operating results and cash flows of the Company had the Company been a separate stand-alone entity during the periods presented. Actual costs that would have been incurred if the Company had been a stand-alone company would depend on multiple factors, including organizational structure and strategic decisions made in various areas, including information technology and infrastructure. We consider the basis on which the expenses have been allocated to be a reasonable reflection of the utilization of services provided to or the benefits received by the Company during the periods presented. We report our quarterly financial information using a calendar convention; the first, second and third quarters are consistently reported as ending on March 31, June 30 and September 30. It has been Honeywell’s practice and will be our practice to establish actual quarterly closing dates using a predetermined fiscal calendar, which requires our businesses to close their books on the last Saturday of the month in to minimize the potentially disruptive effects of quarterly closing on our business processes. The effects of this practice are generally not significant to reported results for any quarter and only exist within a reporting year. In the event that differences in actual closing dates are material to year-over-year comparisons of quarterly or year-to-date results, we will provide appropriate disclosures. Our actual closing dates for the three and nine months ended September 30, 2018 and 2017 were September 29, 2018 and September 30, 2017.

Note 1. Organization, Operations and Basis of Presentation

Business Description

Resideo Technologies, Inc. (“Resideo” or “the Company”), referred to in the Information Statement as Homes and ADI Global Distribution business of Honeywell International Inc., is a leading global provider of products, software, solutions and technologies that help owners of homes stay connected and in control of their comfort, security and energy use. We are a leader in the home heating, ventilation and air conditioning controls and security markets, and a leading global distributor of security and fire protection products.

The Company was incorporated in Delaware on April 24, 2018. The Company separated from Honeywell International Inc. (“Honeywell” or the “Parent”) on October 29, 2018, becoming an independent publicly traded company as a result of a pro rata distribution of the Company’s common stock to shareholders of Honeywell (the “Spin-Off”). The Information Statement was declared effective by the SEC on October 3, 2018. On October 29, 2018, Honeywell’s shareholders of record as of October 16, 2018 (the “Record Date”) received one share of the Company’s common stock, par value $0.001 per share, for every six shares of Honeywell’s common stock, par value $1.00 per share, held as of the Record Date, and cash for any fractional shares of the Company’s common stock. The Company began trading “regular way” under the ticker symbol “REZI” on the New York Stock Exchange on October 29, 2018. References to the Company throughout these Combined Interim Financial Statements are made using the first person notations of “we,” “us” or “our.”

Basis of Presentation

These accompanying Combined Interim Financial Statements have been prepared on a carve-out basis and are derived from Honeywell’s Consolidated Financial Statements and underlying accounting records as if the Company had been a part of Honeywell for all periods presented. As noted above, the Spin-Off of Resideo was not effective until after the conclusion of the three and nine month financial reporting periods presented herein. The unaudited Combined Interim Financial Statements reflect the Company’s financial position, results of operations and cash flows as the business was operated as part of Honeywell prior to the distribution, in conformity with Generally Accepted Accounting Principles in the United States (“U.S. GAAP”).The Combined Interim Financial Statements are unaudited; however, in the opinion of management, they contain all the adjustments (consisting of those of a normal recurring nature) considered necessary to state fairly the financial position, results of operations and cash flows for the periods presented in conformity with U.S. GAAP applicable to interim periods. The unaudited Combined Interim Financial Statements should be read in conjunction with the audited Combined Financial Statements of the Company included in the Information Statement. The results of operations for the three and nine months ended September 30, 2018 and the cash flows for the nine months ended September 30, 2018 should not necessarily be taken as indicative of the entire year.

All intracompany transactions have been eliminated. As described in Note 3. Related Party Transactions with Honeywell, all significant transactions between the Company and Honeywell have been included in these unaudited Combined Interim Financial Statements and were settled in October for cash prior to the Spin-Off. These transactions are reflected in the Combined Interim Balance Sheet as Due from related parties, current or Due to related parties, current. In the Combined Interim Statements of Cash Flows, the cash flows related to related party notes receivables presented in the Combined Interim Balance Sheet in Due from related parties, current are reflected as investing activities since these balances represent amounts loaned to Parent. The cash flows related to related party notes payables presented in the Combined Interim Balance Sheet in Due to related parties, current are reflected as financing activities since these balances represent amounts financed by Parent.

Honeywell uses a centralized approach to cash management and financing of its operations. Historically, the majority of the Company’s cash was transferred to Honeywell daily and Honeywell funded the Company’s operating and investing activities as needed. This arrangement is not reflective of the manner in which the Company would have been able to finance its operations had it been a stand-alone business separate from Honeywell during the periods presented. Cash transfers to and from Honeywell’s cash management accounts are reflected in the Combined Interim Balance Sheet as Due to and Due from related parties, current and in the Combined Interim Statements of Cash Flows as net financing activities.

The unaudited Combined Interim Financial Statements include certain assets and liabilities that have historically been held at the Honeywell corporate level but are specifically identifiable or otherwise attributable to the Company. The cash and cash equivalents held by Honeywell at the corporate level were not specifically identifiable to the Company and therefore were not attributed for any of the periods presented. Honeywell third-party debt and the related interest expense were not allocated for any of the periods presented as Honeywell’s borrowings were not directly attributable to the Company.

Historically, Honeywell provided certain services, such as legal, accounting, information technology, human resources and other infrastructure support, on behalf of the Company. The cost of these services has been allocated to the Company on the basis of the proportion of revenues. The Company and Honeywell consider these allocations to be a reasonable reflection of the benefits received by the Company. However, the financial information presented in these unaudited Combined Interim Financial Statements may not reflect the combined financial position, operating results and cash flows of the Company had the Company been a separate stand-alone entity during the periods presented. Actual costs that would have been incurred if the Company had been a stand-alone company would depend on multiple factors, including organizational structure and strategic decisions made in various areas, including information technology and infrastructure. We consider the basis on which the expenses have been allocated to be a reasonable reflection of the utilization of services provided to or the benefits received by the Company during the periods presented.

We report our quarterly financial information using a calendar convention; the first, second and third quarters are consistently reported as ending on March 31, June 30 and September 30. It has been Honeywell’s practice and will be our practice to establish actual quarterly closing dates using a predetermined fiscal calendar, which requires our businesses to close their books on the last Saturday of the month in to minimize the potentially disruptive effects of quarterly closing on our business processes. The effects of this practice are generally not significant to reported results for any quarter and only exist within a reporting year. In the event that differences in actual closing dates are material to year-over-year comparisons of quarterly or year-to-date results, we will provide appropriate disclosures. Our actual closing dates for the three and nine months ended September 30, 2018 and 2017 were September 29, 2018 and September 30, 2017.