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v3.19.1

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (General Information) (Details) - USD ($) shares in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Nov. 26, 2018
Business Acquisition [Line Items] |  |  |  |
Acquisition Cost Of Acquired Entities and Interest in Affiliates | $ 19,000,000 |  |  |
Proceeds from Issuance of Debt |  |  | $ 11,000,000,000 |
Proceeds from Debt, Net of Issuance Costs |  |  | $ 10,900,000,000 |
Goodwill Resulting from Business Combinations | 93,000,000 |  |  |
Contractual Obligation, Due in Next Fiscal Year | 145,000,000 |  |  |
Contractual Obligation, Due in Second Year | 133,000,000 |  |  |
Contractual Obligation, Due in Third Year | 131,000,000 |  |  |
Contractual Obligation, Due in Fourth Year | 125,000,000 |  |  |
Contractual Obligation, Due in Fifth Year | 118,000,000 |  |  |
Business Combination, Acquisition Related Costs | $ 9,000,000 | $ 30,000,000 |  |
Rockwell Collins [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Effective Date of Acquisition |  |  | Nov. 26, 2018 |
Business Acquisition, Name of Acquired Entity |  |  | Rockwell Collins |
Business Acquisition Cash Paid Per Share |  |  | $ 93.33 |
Business Acquisition UTC stock payable |  |  | 0.37525 |
Payments to Acquire Businesses, Gross |  |  | 15,500,000,000 |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | $ 14,900,000,000 |
Stock Issued During Period, Shares, Acquisitions |  |  | 62.2 |
Noncash or Part Noncash Acquisition, Debt Assumed |  |  | $ 7,800,000,000 |
Noncash or Part Noncash Acquisition, Value of Assets Acquired |  |  | 30,600,000,000 |
Stock Issued During Period, Value, Acquisitions |  |  | 7,960,000,000 |
Business Combination, Consideration Transferred |  |  | 23,493,000,000 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents |  |  |  | $ 640,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  |  |  | 1,663,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory |  |  |  | 1,520,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, contract with customer asset, current |  |  |  | 301,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other |  |  |  | 264,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent |  |  |  | 38,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  | 1,691,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  |  | 1,870,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets |  |  |  | 210,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  | 17,117,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt |  |  |  | 2,254,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable |  |  |  | 378,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, accrued liabilities current |  |  |  | 1,689,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, contract with customer liabilities, current |  |  |  | 301,000,000
Business Acquisition, Assumed Long-term Debt |  |  |  | 5,530,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, liability, defined benefit plan, noncurrent |  |  |  | 502,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other |  |  |  | 3,517,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, noncontrolling interest |  |  |  | 6,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  | 14,177,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  | 2,940,000,000
Goodwill Resulting from Business Combinations |  |  | $ 20,553,000,000 |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  |  |  | 23,493,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  | 10,790,000,000
Fair value adjustment, inventory |  |  |  | 282,000,000
Fair value adjustment, fixed assets |  |  |  | 269,000,000
Contractual Obligation |  |  |  | 1,020,000,000
Rockwell Collins [Member] | Customer Relationships [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  | 8,320,000,000
Rockwell Collins [Member] | Customer Relationships [Member] | Maximum [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 20 years |  |  |
Rockwell Collins [Member] | Customer Relationships [Member] | Minimum [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |
Rockwell Collins [Member] | Technology-Based Intangible Assets [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  | $ 600,000,000
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  |

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- Definition The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 + Details
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- Definition The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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