SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING STANDARDS (Policies)	9 Months Ended
Sep. 30, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of PresentationThe accompanying Condensed Consolidated Financial Statements (Unaudited) include the accounts of L3Harris Technologies, Inc. and its consolidated subsidiaries. As used in these Notes to Condensed Consolidated Financial Statements (Unaudited) (these “Notes”), the terms “L3Harris,” “Company,” “we,” “our” and “us” refer to L3Harris Technologies, Inc. and its consolidated subsidiaries. Intracompany transactions and accounts have been eliminated in consolidation. The accompanying Condensed Consolidated Financial Statements (Unaudited) have been prepared by L3Harris in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, such interim financial statements do not include all information and footnotes necessary for a complete presentation of financial condition, results of operations, cash flows and equity in conformity with GAAP for annual financial statements. In the opinion of management, such interim financial statements reflect all adjustments (including normal recurring adjustments) considered necessary for a fair presentation of our financial condition, results of operations, cash flows and equity for the periods presented therein. The results for the quarter and three quarters ended September 30, 2022 are not necessarily indicative of the results that may be expected for the full fiscal year or any subsequent period. The balance sheet at December 31, 2021 has been derived from our audited financial statements, but does not include all of the information and footnotes required by GAAP for annual financial statements. We provide complete, audited financial statements in our Annual Report on Form 10-K, which includes information and footnotes required by the rules and regulations of the SEC. The information included in this Quarterly Report on Form 10-Q (this “Report”) should be read in conjunction with the Management’s Discussion and Analysis of Financial Condition and Results of Operations and the Consolidated Financial Statements and accompanying Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 (our “Fiscal 2021 Form 10-K”).
Business Segment Information	Segment reorganization and change in accounting policy: We implemented a new organizational structure effective January 1, 2022, resulting in changes to our operating segments, which are also our reportable segments and are referred to as our business segments. The new structure streamlined our business segments from four to three business segments. Our former Aviation Systems segment was eliminated as a business segment. We updated our business segment reporting and accounting policies for pension and other postretirement benefits plan (“OPEB”) income or expense to better align our presentation of business segment information with our industry peers. Our business segment operating results include pension and OPEB cost under U.S. Government Cost Accounting Standards (“CAS”), as CAS pension and OPEB cost is allocable to and allowable under contracts with the U.S. Government. We no longer assign or allocate Financial Accounting Standards (“FAS”) pension and OPEB income or expense to our business segments. GAAP requires pension and OPEB income or expense to be recognized on a FAS basis. Therefore, we present a “FAS/CAS operating adjustment” outside of business segment results, representing the difference between the service cost component of FAS pension and OPEB income or expense and total CAS pension and OPEB cost or expense. Non-service cost components of FAS pension and OPEB income or expense are included as a component of non-operating income or expense. Effective for fiscal 2022, which began January 1, 2022, we report our financial results in the following three reportable segments: •Integrated Mission Systems, including multi-mission intelligence, surveillance and reconnaissance (“ISR”) systems; integrated electrical and electronic systems for maritime platforms; advanced electro-optical and infrared (“EO/IR”) solutions; fuzing and ordnance systems; commercial aviation products; and commercial pilot training operations; •Space & Airborne Systems, including space payloads, sensors and full-mission solutions; classified intelligence and cyber; avionics; electronic warfare; and mission networks for air traffic management operations; and •Communication Systems, including tactical communications with global communications solutions; broadband communications; integrated vision solutions; and public safety radios, system applications and equipment. We structure our operations primarily around the products, systems and services we sell and the markets we serve. Effective January 1, 2022, we have streamlined our business segments from four business segments to three business segments. As a result of the segment reorganization, the Aviation Systems segment was eliminated as a business segment. As part of our new business segment structure, the ongoing operations that had been part of our former Aviation Systems segment were integrated into the remaining segments. Fuzing and ordnance systems, commercial aviation products and commercial pilot training operations were moved into our Integrated Mission Systems segment; and mission networks for air traffic management operations was moved into our Space & Airborne Systems segment. During the quarter ended September 30, 2022, we adjusted our reporting within our Integrated Mission Systems segment to better align our businesses and transferred our precision engagement business, which includes fuzing and ordnance systems, from our ADG reporting unit to our Electro Optical reporting unit. See Note B — Business Divestitures and Asset Sales in these Notes for information relating to businesses divested and asset sales during the quarter and three quarters ended September 30, 2022 and October 1, 2021. The accounting policies of our business segments are the same as those described in Note 1: “Significant Accounting Policies” in the Notes to Consolidated Financial Statements in our Fiscal 2021 Form 10-K. We evaluate each business segment’s performance based on its operating income or loss, which we define as profit or loss from operations before income taxes, including CAS pension cost and excluding interest income and expense, royalties and related intellectual property expenses, equity method investment income or loss and gains or losses from securities and other investments. Intersegment sales are generally transferred at cost to the buying segment, and the sourcing segment recognizes a profit that is eliminated. The “Corporate eliminations” line item in the table below represents the elimination of intersegment sales. Corporate expenses are primarily allocated to our business segments using an allocation methodology prescribed by U.S. Government regulations for government contractors. The unallocated items in the table below represent the portion of corporate expenses not allocated to our business segments and elimination of intersegment profits. In accordance with CAS, we allocate a portion of pension and other postretirement benefit plan costs to our U.S. Government contracts. However, our consolidated financial statements require pension and other postretirement benefit plan income or expense be calculated in accordance with FAS requirements under GAAP. The “FAS/CAS operating adjustment” line item in the table below represents the difference between the service cost component of FAS pension and OPEB expense and total CAS pension and OPEB cost. The net non-service cost components of FAS pension and OPEB income are included as an income component in the “Non-operating income, net” line item in our Condensed Consolidated Statement of Operations (Unaudited). See Note L — Postretirement Benefit Plans for more information on the composition of non-service components of FAS pension and OPEB income and expense.
Use of Estimates	Use of Estimates The preparation of financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes and related disclosures. These estimates and assumptions are based on experience and other information available prior to issuance of the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes. Materially different results can occur as circumstances change and additional information becomes known.
Significant Accounting Policies Update	Significant Accounting Policies Update There have been no material changes to our significant accounting policies described in our Fiscal 2021 Form 10-K.
Earnings Per Share	ncome from continuing operations per common share attributable to L3Harris common shareholders (“EPS”) is computed using the two-class method, which is an earnings allocation formula that determines EPS for common stock and any participating securities according to dividends paid and participation rights in undistributed earnings. Under the two-class method, EPS is computed by dividing the sum of earnings distributed to L3Harris common shareholders and undistributed earnings allocated to L3Harris common shareholders by the weighted-average number of common shares outstanding for the period. (Loss) income from continuing operations per diluted common share attributable to L3Harris common shareholders (“diluted EPS”) is computed using the more dilutive of the two-class method or the treasury stock method. Under the treasury stock method, diluted EPS is computed by dividing net (loss) income attributable to L3Harris common shareholders by the weighted-average number of common shares outstanding for the period. In applying the two-class method, undistributed earnings are allocated to both common shares and participating securities based on the weighted-average shares outstanding during the period.
Fair Value Transfer	Fair value is defined as the price that would be received for an asset or the price that would be paid to transfer a liability in the principal market or most advantageous market in an orderly transaction between market participants at the measurement date. Entities are required to maximize the use of observable inputs and minimize the use of unobservable inputs in measuring fair value, and to utilize a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. The three levels of inputs used to measure fair value are as follows: •Level 1 — Quoted prices in active markets for identical assets or liabilities. •Level 2 — Observable inputs other than quoted prices included within Level 1, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; and inputs other than quoted prices that are observable or are derived principally from, or corroborated by, observable market data by correlation or other means. •Level 3 — Unobservable inputs that are supported by little or no market activity, are significant to the fair value of the assets or liabilities, and reflect our own assumptions about the assumptions market participants would use in pricing the asset or liability developed using the best information available in the circumstances. In certain instances, fair value is estimated using quoted market prices obtained from external pricing services. In obtaining such data from the external pricing services, we have evaluated the methodologies used to develop the estimate of fair value in order to assess whether such valuations are representative of fair value, including net asset value (“NAV”). Additionally, in certain circumstances, the NAV reported by an asset manager may be adjusted when sufficient evidence indicates NAV is not representative of fair value.

SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING STANDARDS (Policies)

9 Months Ended

Sep. 30, 2022

Basis of PresentationThe accompanying Condensed Consolidated Financial Statements (Unaudited) include the accounts of L3Harris Technologies, Inc. and its consolidated subsidiaries. As used in these Notes to Condensed Consolidated Financial Statements (Unaudited) (these “Notes”), the terms “L3Harris,” “Company,” “we,” “our” and “us” refer to L3Harris Technologies, Inc. and its consolidated subsidiaries. Intracompany transactions and accounts have been eliminated in consolidation. The accompanying Condensed Consolidated Financial Statements (Unaudited) have been prepared by L3Harris in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, such interim financial statements do not include all information and footnotes necessary for a complete presentation of financial condition, results of operations, cash flows and equity in conformity with GAAP for annual financial statements. In the opinion of management, such interim financial statements reflect all adjustments (including normal recurring adjustments) considered necessary for a fair presentation of our financial condition, results of operations, cash flows and equity for the periods presented therein. The results for the quarter and three quarters ended September 30, 2022 are not necessarily indicative of the results that may be expected for the full fiscal year or any subsequent period. The balance sheet at December 31, 2021 has been derived from our audited financial statements, but does not include all of the information and footnotes required by GAAP for annual financial statements. We provide complete, audited financial statements in our Annual Report on Form 10-K, which includes information and footnotes required by the rules and regulations of the SEC. The information included in this Quarterly Report on Form 10-Q (this “Report”) should be read in conjunction with the Management’s Discussion and Analysis of Financial Condition and Results of Operations and the Consolidated Financial Statements and accompanying Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 (our “Fiscal 2021 Form 10-K”).

Business Segment Information

Segment reorganization and change in accounting policy: We implemented a new organizational structure effective January 1, 2022, resulting in changes to our operating segments, which are also our reportable segments and are referred to as our business segments. The new structure streamlined our business segments from four to three business segments. Our former Aviation Systems segment was eliminated as a business segment.

We updated our business segment reporting and accounting policies for pension and other postretirement benefits plan (“OPEB”) income or expense to better align our presentation of business segment information with our industry peers. Our business segment operating results include pension and OPEB cost under U.S. Government Cost Accounting Standards (“CAS”), as CAS pension and OPEB cost is allocable to and allowable under contracts with the U.S. Government. We no longer assign or allocate Financial Accounting Standards (“FAS”) pension and OPEB income or expense to our business segments. GAAP requires pension and OPEB income or expense to be recognized on a FAS basis. Therefore, we present a “FAS/CAS operating adjustment” outside of business segment results, representing the difference between the service cost component of FAS pension and OPEB income or expense and total CAS pension and OPEB cost or expense. Non-service cost components of FAS pension and OPEB income or expense are included as a component of non-operating income or expense.

Effective for fiscal 2022, which began January 1, 2022, we report our financial results in the following three reportable segments:

•Integrated Mission Systems, including multi-mission intelligence, surveillance and reconnaissance (“ISR”) systems; integrated electrical and electronic systems for maritime platforms; advanced electro-optical and infrared (“EO/IR”) solutions; fuzing and ordnance systems; commercial aviation products; and commercial pilot training operations;

•Space & Airborne Systems, including space payloads, sensors and full-mission solutions; classified intelligence and cyber; avionics; electronic warfare; and mission networks for air traffic management operations; and

•Communication Systems, including tactical communications with global communications solutions; broadband communications; integrated vision solutions; and public safety radios, system applications and equipment.

We structure our operations primarily around the products, systems and services we sell and the markets we serve. Effective January 1, 2022, we have streamlined our business segments from four business segments to three business segments. As a result of the segment reorganization, the Aviation Systems segment was eliminated as a business segment. As part of our new business segment structure, the ongoing operations that had been part of our former Aviation Systems segment were integrated into the remaining segments. Fuzing and ordnance systems, commercial aviation products and commercial pilot training operations were moved into our Integrated Mission Systems segment; and mission networks for air traffic management operations was moved into our Space & Airborne Systems segment.

During the quarter ended September 30, 2022, we adjusted our reporting within our Integrated Mission Systems segment to better align our businesses and transferred our precision engagement business, which includes fuzing and ordnance systems, from our ADG reporting unit to our Electro Optical reporting unit.

See Note B — Business Divestitures and Asset Sales in these Notes for information relating to businesses divested and asset sales during the quarter and three quarters ended September 30, 2022 and October 1, 2021.

The accounting policies of our business segments are the same as those described in Note 1: “Significant Accounting Policies” in the Notes to Consolidated Financial Statements in our Fiscal 2021 Form 10-K. We evaluate each business segment’s performance based on its operating income or loss, which we define as profit or loss from operations before income taxes, including CAS pension cost and excluding interest income and expense, royalties and related intellectual property expenses, equity method investment income or loss and gains or losses from securities and other investments. Intersegment sales are generally transferred at cost to the buying segment, and the sourcing segment recognizes a profit that is eliminated. The “Corporate eliminations” line item in the table below represents the elimination of intersegment sales. Corporate expenses are primarily allocated to our business segments using an allocation methodology prescribed by U.S. Government regulations for government contractors. The unallocated items in the table below represent the portion of corporate expenses not allocated to our business segments and elimination of intersegment profits.

In accordance with CAS, we allocate a portion of pension and other postretirement benefit plan costs to our U.S. Government contracts. However, our consolidated financial statements require pension and other postretirement benefit plan income or expense be calculated in accordance with FAS requirements under GAAP. The “FAS/CAS operating adjustment” line item in the table below represents the difference between the service cost component of FAS pension and OPEB expense and total CAS pension and OPEB cost. The net non-service cost components of FAS pension and OPEB income are included as an income component in the “Non-operating income, net” line item in our Condensed Consolidated Statement of Operations (Unaudited). See Note L — Postretirement Benefit Plans for more information on the composition of non-service components of FAS pension and OPEB income and expense.

Use of Estimates

Use of Estimates The preparation of financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes and related disclosures. These estimates and assumptions are based on experience and other information available prior to issuance of the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes. Materially different results can occur as circumstances change and additional information becomes known.

Significant Accounting Policies Update

There have been no material changes to our significant accounting policies described in our Fiscal 2021 Form 10-K.

Earnings Per Share

ncome from continuing operations per common share attributable to L3Harris common shareholders (“EPS”) is computed using the two-class method, which is an earnings allocation formula that determines EPS for common stock and any participating securities according to dividends paid and participation rights in undistributed earnings. Under the two-class method, EPS is computed by dividing the sum of earnings distributed to L3Harris common shareholders and undistributed earnings allocated to L3Harris common shareholders by the weighted-average number of common shares outstanding for the period. (Loss) income from continuing operations per diluted common share attributable to L3Harris common shareholders (“diluted EPS”) is computed using the more dilutive of the two-class method or the treasury stock method. Under the treasury stock method, diluted EPS is computed by dividing net (loss) income attributable to L3Harris common shareholders by the weighted-average number of common shares outstanding for the period. In applying the two-class method, undistributed earnings are allocated to both common shares and participating securities based on the weighted-average shares outstanding during the period.

Fair Value Transfer

Fair value is defined as the price that would be received for an asset or the price that would be paid to transfer a liability in the principal market or most advantageous market in an orderly transaction between market participants at the measurement date. Entities are required to maximize the use of observable inputs and minimize the use of unobservable inputs in measuring fair value, and to utilize a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. The three levels of inputs used to measure fair value are as follows:

•Level 1 — Quoted prices in active markets for identical assets or liabilities.

•Level 2 — Observable inputs other than quoted prices included within Level 1, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; and inputs other than quoted prices that are observable or are derived principally from, or corroborated by, observable market data by correlation or other means.

•Level 3 — Unobservable inputs that are supported by little or no market activity, are significant to the fair value of the assets or liabilities, and reflect our own assumptions about the assumptions market participants would use in pricing the asset or liability developed using the best information available in the circumstances.

In certain instances, fair value is estimated using quoted market prices obtained from external pricing services. In obtaining such data from the external pricing services, we have evaluated the methodologies used to develop the estimate of fair value in order to assess whether such valuations are representative of fair value, including net asset value (“NAV”). Additionally, in

certain circumstances, the NAV reported by an asset manager may be adjusted when sufficient evidence indicates NAV is not representative of fair value.