RTX (RTX) 10-Q 28 Apr 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	3 Months Ended
	Mar. 31, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Registrant Name	UNITED TECHNOLOGIES CORP /DE/
Entity Central Index Key	101,829
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 85,789,321,218
Entity Common Stock, Shares Outstanding	801,227,504

Condensed Consolidated Statemen

Condensed Consolidated Statement of Operations Condensed Consolidated Statement of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net Sales:
Product Sales	$ 9,637	$ 9,419
Service Sales	4,178	3,938
Total net sales	13,815	13,357
Costs and Expenses:
Cost of products sold	7,263	7,087
Cost of services sold	2,814	2,567
Research and development	577	541
Selling, general and administrative	1,482	1,363
Total costs and expenses	12,136	11,558
Other income, net	588	146
Operating profit	2,267	1,945
Interest expense, net	213	223
Income from continuing operations before income taxes	2,054	1,722
Income tax expense	586	469
Net Income from continuing operations	1,468	1,253
Less: Noncontrolling interest in subsidiaries' earnings from continuing operations	82	81
Income from continuing operations attributable to common shareowners	1,386	1,172
Discontinued operations (Note 2):
Gain on disposal	0	18
Income tax expense	0	7
Income (loss) from discontinued operations	0	11
Income from discontinued operations attributable to common shareowners	0	11
Net income attributable to common shareowners	$ 1,386	$ 1,183
Earnings Per Share of Common Stock - Basic:
Income from continuing operations attributable to common shareowners	$ 1.75	$ 1.42
Net income attributable to common shareowners	1.75	1.43
Earnings Per Share of Common Stock - Diluted:
Income from continuing operations attributable to common shareowners	1.73	1.41
Net income attributable to common shareowners	$ 1.73	$ 1.42

Condensed Consolidated Stateme3

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 1,468	$ 1,253
Income (loss) from discontinued operations	0	11
Net Income	1,468	1,264
Foreign currency translation adjustments
Foreign currency translation adjustments arising during period	146	39
Less: Reclassification adjustments for loss on sale of an investment in a foreign entity recognized in Other income, net	0	(1)
Foreign currency translation adjustments	146	40
Pension and post-retirement benefit plans
Pension and post-retirement benefit plans adjustments during the period	1	(25)
Amortization of actuarial loss, prior service cost and transition obligation	131	126
Total pension and post-retirement benefit plans, before tax	(132)	(101)
Tax expense	(49)	(38)
Pension and Other Postretirement Benefit Plans, Net of Tax	(83)	(63)
Unrealized gain (loss) on available-for-sale securities
Unrealized holding gain (loss) arising during period	(32)	69
Reclassification adjustments for gain included in Other income, net	383	27
Total unrealized gain (loss) on available for-sale securities, before tax	(415)	42
Tax benefit (expense)	(158)	19
Total unrealized gain (loss) on available for-sale securities, net of tax	(257)	23
Change in unrealized cash flow hedging
Unrealized cash flow hedging (loss) gain arising during the period	64	159
Loss reclassified into Product Sales	(5)	(62)
Total unrealized loss (gain) on cash-flow hedging, before tax	69	221
Tax expense	15	59
Total unrealized gain (loss) on cash-flow hedging, net of tax	54	162
Other comprehensive loss, net of tax	26	288
Comprehensive income	1,494	1,552
Less: Comprehensive income attributable to noncontrolling interest	107	94
Comprehensive income attributable to common shareowners	$ 1,387	$ 1,458

Condensed Consolidated Balance

Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 7,156	$ 7,157
Accounts receivable, net	11,840	11,481
Inventories and contracts in progress, net	9,386	8,704
Other assets, current	923	1,208
Total Current Assets	29,305	28,550
Customer financing assets	1,593	1,398
Future income tax benefits	1,804	1,809
Fixed assets	19,892	19,469
Less: Accumulated depreciation	10,637	10,311
Fixed assets, net	9,255	9,158
Goodwill	27,273	27,059
Intangible assets, net	15,780	15,684
Other assets	5,363	6,048
Total Assets	90,373	89,706
Short-term borrowings	1,200	601
Accounts payable	7,520	7,483
Accrued liabilities	12,522	12,219
Long-term debt currently due	2,484	1,603
Total Current Liabilities	23,726	21,906
Long-term debt	20,898	21,697
Future pension and postretirement benefit obligations	5,433	5,612
Other long-term liabilities	10,737	11,026
Total Liabilities	60,794	60,241
Commitments and contingent liabilities (Note 15)
Redeemable noncontrolling interest	307	296
Common Stock	17,359	17,285
Treasury Stock	35,080	34,150
Retained earnings	53,741	52,873
Unearned ESOP shares	93	95
Accumulated other comprehensive loss	(8,333)	(8,334)
Total Shareowners' Equity	27,594	27,579
Noncontrolling interest	1,678	1,590
Total Equity	29,272	29,169
Total Liabilities and Equity	$ 90,373	$ 89,706

Condensed Consolidated Stateme5

Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Cash Flows [Abstract]
Net income from Continuing Operations	$ 1,468	$ 1,253
Adjustments to reconcile income from continuing operations to net cash flows provided by operating activities of continuing operations:
Depreciation and amortization	512	466
Deferred income tax provision	109	145
Stock compensation cost	47	48
Change in:
Accounts receivable	268	110
Inventories and contracts in progress	654	310
Other current assets	21	81
Accounts payable and accrued liabilities	468	(130)
Global pension contributions	46	75
Canadian Government Settlement	(246)	(237)
Other operating activities, net	376	171
Net cash flows provided by operating activities of continuing operations	993	798
Investing Activities of Continuing Operations:
Capital expenditures	325	286
Investments in businesses	95	79
Dispositions of businesses	5
Dispositions of businesses		16
Proceeds from the sale of the investment in Watsco Inc.	596	0
(Increase) in customer financing assets	147
Decrease in customer financing assets		13
Increase in collaboration intangible assets	101	98
(Payments) receipts from settlements of derivative contracts	113	(42)
Other investing activities, net	(51)	101
Net cash flows used in investing activities of continuing operations	(139)	(493)
Financing Activities of Continuing Operations:
(Repayment) issuance of long-term debt, net	(27)	2,324
Increase in short-term borrowings, net	567	306
Proceeds from Common Stock issued under employee stock plans	11	2
Dividends paid on Common Stock	505	509
Repurchase of Common Stock	933	0
Other financing activities, net	(42)	(93)
Net cash flows (used in) provided by financing activities of continuing operations	(929)	2,030
Discontinued Operations:
Net cash flows used in operating activities of discontinued operations	0	(2,227)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign exchange rate changes on cash and cash equivalents	69	17
Net (decrease) increase in cash and cash equivalents	(6)	125
Cash and Cash Equivalents, beginning of year	7,189	7,120
Cash and Cash Equivalents, end of period	7,183	7,245
Less: Cash and cash equivalents of businesses held for sale	27	30
Cash and cash equivalents, end of period	$ 7,156	$ 7,215

Introduction to Notes to Conden

Introduction to Notes to Condensed Consolidated Financial Statements (Unaudited) Introduction	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Introduction of Notes to Condensed Consolidated Financial Statements	The Condensed Consolidated Financial Statements at March 31, 2017 and for the quarters ended March 31, 2017 and 2016 are unaudited, but in the opinion of management include all adjustments (consisting only of normal recurring adjustments) necessary for a fair statement of the results for the interim periods. The results reported in these Condensed Consolidated Financial Statements should not necessarily be taken as indicative of results that may be expected for the entire year. The financial information included herein should be read in conjunction with the financial statements and notes in our Annual Report to Shareowners ( 2016 Annual Report) incorporated by reference to our Annual Report on Form 10-K for calendar year 2016 ( 2016 Form 10-K). Certain reclassifications have been made to the prior year amounts to conform to the current year presentation. As previously disclosed in our 2016 Form 10-K, in 2016 we early adopted Accounting Standards Update (ASU) 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments and ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash . Amounts previously reported for the quarter ended March 31, 2016 have been restated as required upon adoption of these ASUs. These restatements had an immaterial impact to the Condensed Consolidated Financial Statements as of March 31, 2016 and for the quarter then ended.

Acquisitions, Dispositions, Goo

Acquisitions, Dispositions, Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2017
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Acquisitions, Dispositions, Goodwill and Other Intangible Assets [Text Block]	Acquisitions, Dispositions, Goodwill and Other Intangible Assets Business Acquisitions and Dispositions. During the quarter ended March 31, 2017 , our investment in business acquisitions was $95 million , and consisted of a number of small acquisitions, primarily in our commercial businesses. Goodwill. Changes in our goodwill balances for the quarter ended March 31, 2017 were as follows: (Dollars in millions) Balance as of Goodwill Resulting from Business Combinations Foreign Currency Translation and Other Balance as of Otis $ 1,575 $ (7 ) $ 57 $ 1,625 UTC Climate, Controls & Security 9,487 41 93 9,621 Pratt & Whitney 1,511 — — 1,511 UTC Aerospace Systems 14,483 — 30 14,513 Total Segments 27,056 34 180 27,270 Eliminations and other 3 — — 3 Total $ 27,059 $ 34 $ 180 $ 27,273 Intangible Assets. Identifiable intangible assets are comprised of the following: March 31, 2017 December 31, 2016 (Dollars in millions) Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Amortized: Service portfolios $ 2,073 $ (1,412 ) $ 1,995 $ (1,344 ) Patents and trademarks 384 (208 ) 378 (201 ) Collaboration intangible assets 3,825 (255 ) 3,724 (211 ) Customer relationships and other 12,967 (3,640 ) 12,798 (3,480 ) 19,249 (5,515 ) 18,895 (5,236 ) Unamortized: Trademarks and other 2,046 — 2,025 — Total $ 21,295 $ (5,515 ) $ 20,920 $ (5,236 ) Customer relationship intangible assets include payments made to our customers to secure certain contractual rights. Such payments are capitalized when there are distinct rights obtained and there are sufficient incremental cash flows to support the recoverability of the assets established. Otherwise, the applicable portion of the payments are expensed. We amortize these intangible assets based on the underlying pattern of economic benefit, which may result in an amortization method other than straight-line. In the aerospace industry, amortization based on the pattern of economic benefit generally results in lower amortization expense during the development period with increasing amortization expense as programs enter full production and aftermarket cycles. If a pattern of economic benefit cannot be reliably determined, a straight-line amortization method is used. We classify amortization of such payments as a reduction of sales. The collaboration intangible assets are amortized based upon the pattern of economic benefits as represented by the underlying cash flows. Amortization of intangible assets was $205 million and $187 million for the quarters ended March 31, 2017 and 2016 , respectively. The following is the expected amortization of intangible assets for the years 2017 through 2022 , which reflects the pattern of expected economic benefit on certain aerospace intangible assets. (Dollars in millions) Remaining 2017 2018 2019 2020 2021 2022 Amortization expense $ 623 $ 855 $ 868 $ 848 $ 817 $ 805

Discontinued Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Discontinued Operations On November 6, 2015, we completed the sale of Sikorsky to Lockheed Martin Corp. In the quarter ended March 31, 2016 , we recognized approximately $18 million of additional Gain on disposal of discontinued operations including settlement of working capital adjustments, and net cash outflows from discontinued operations of approximately $2.2 billion , primarily related to the payment of Federal taxes related to the 2015 gain realized on the sale of Sikorsky.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Earnings Per Share Quarter Ended March 31, (Dollars in millions, except per share amounts; shares in millions) 2017 2016 Net income attributable to common shareowners: Net income from continuing operations $ 1,386 $ 1,172 Income from discontinued operations — 11 Net income attributable to common shareowners $ 1,386 $ 1,183 Basic weighted average number of shares outstanding 793.5 825.0 Stock awards and equity units 8.8 6.3 Diluted weighted average number of shares outstanding 802.3 831.3 Earnings Per Share of Common Stock - Basic: Net income from continuing operations $ 1.75 $ 1.42 Income from discontinued operations — 0.01 Net income attributable to common shareowners 1.75 1.43 Earnings Per Share of Common Stock - Diluted: Net income from continuing operations $ 1.73 $ 1.41 Income from discontinued operations — 0.01 Net income attributable to common shareowners 1.73 1.42 The computation of diluted earnings per share excludes the effect of the potential exercise of stock awards, including stock appreciation rights and stock options, when the average market price of the common stock is lower than the exercise price of the related stock awards during the period because the effect would be anti-dilutive. For the quarters ended March 31, 2017 and 2016 , the number of stock awards excluded from the computation was approximately 12.2 million and 16.4 million , respectively.

Inventories and Contracts in Pr

Inventories and Contracts in Progress	3 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Inventories and Contracts in Progress [Text Block]	Inventories and Contracts in Progress (Dollars in millions) March 31, 2017 December 31, 2016 Raw materials $ 2,154 $ 2,040 Work-in-process 3,075 2,787 Finished goods 3,528 3,305 Contracts in progress 9,592 9,395 18,349 17,527 Less: Progress payments, secured by lien, on U.S. Government contracts (131 ) (130 ) Billings on contracts in progress (8,832 ) (8,693 ) $ 9,386 $ 8,704 Inventories include capitalized contract development costs related to certain aerospace programs at UTC Aerospace Systems. As of March 31, 2017 and December 31, 2016 , these capitalized costs were $127 million and $140 million , respectively, which will be liquidated as production units are delivered to the customer. Within commercial aerospace, inventory costs attributable to new engine offerings are recognized based on the average cost per unit expected over the life of each contract using the units-of-delivery method of percentage of completion accounting. Under this method, costs of initial engine deliveries in excess of the projected contract per unit average cost are capitalized, and these capitalized amounts are subsequently expensed as additional engine deliveries occur for engines with costs below the projected contract per unit average cost over the life of the contract. As of March 31, 2017 and December 31, 2016 , inventory included $275 million and $233 million , respectively, of such capitalized amounts.

Borrowings and Lines of Credit

Borrowings and Lines of Credit	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Borrowings and Lines of Credit [Text Block]	Borrowings and Lines of Credit (Dollars in millions) March 31, 2017 December 31, 2016 Commercial paper $ 1,074 $ 522 Other borrowings 126 79 Total short-term borrowings $ 1,200 $ 601 At March 31, 2017 , we had revolving credit agreements with various banks permitting aggregate borrowings of up to $4.35 billion , pursuant to a $2.20 billion revolving credit agreement and a $2.15 billion multicurrency revolving credit agreement, both of which expire in August 2021 . As of March 31, 2017 , there were no borrowings under these revolving credit agreements. The undrawn portions of these revolving credit agreements are also available to serve as backup facilities for the issuance of commercial paper. As of March 31, 2017 , our maximum commercial paper borrowing limit was $4.35 billion . Commercial paper borrowings at March 31, 2017 include approximately €500 million ( $540 million ) of euro-denominated commercial paper. We use our commercial paper borrowings for general corporate purposes, including the funding of potential acquisitions, debt refinancing, and repurchases of our common stock. The need for commercial paper borrowings arises when the use of domestic cash for acquisitions, dividends, and share repurchases exceeds the sum of domestic cash generation and foreign cash repatriated to the U.S. Long-term debt consisted of the following: (Dollars in millions) March 31, 2017 December 31, 2016 1.800% notes due 2017 1 $ 1,500 $ 1,500 6.800% notes due 2018 99 99 EURIBOR plus 0.800% floating rate notes due 2018 (€750 million principal value) 2 811 783 1.778% junior subordinated notes due 2018 1,100 1,100 LIBOR plus 0.350% floating rate notes due 2019 3 350 350 1.500% notes due 2019 1 650 650 8.875% notes due 2019 271 271 4.875% notes due 2020 1 171 171 4.500% notes due 2020 1 1,250 1,250 8.750% notes due 2021 250 250 1.950% notes due 2021 1 750 750 1.125% notes due 2021 (€950 million principal value) 1 1,027 992 3.100% notes due 2022 1 2,300 2,300 1.250% notes due 2023 (€750 million principal value) 1 811 783 1.875% notes due 2026 (€500 million principal value) 1 540 522 2.650% notes due 2026 1 1,150 1,150 7.100% notes due 2027 141 141 6.700% notes due 2028 400 400 7.500% notes due 2029 1 550 550 5.400% notes due 2035 1 600 600 6.050% notes due 2036 1 600 600 6.800% notes due 2036 1 134 134 7.000% notes due 2038 159 159 6.125% notes due 2038 1 1,000 1,000 5.700% notes due 2040 1 1,000 1,000 4.500% notes due 2042 1 3,500 3,500 4.150% notes due 2045 1 850 850 3.750% notes due 2046 1 1,100 1,100 Project financing obligations 130 155 Other (including capitalized leases) 188 189 Total principal long-term debt 23,382 23,299 Other (fair market value adjustments and discounts) — 1 Total long-term debt 23,382 23,300 Less: current portion 2,484 1,603 Long-term debt, net of current portion $ 20,898 $ 21,697 1 We may redeem these notes at our option pursuant to their terms. 2 The three-month EURIBOR rate as of March 31, 2017 was approximately -0.329%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation. 3 The three-month LIBOR rate as of March 31, 2017 was approximately 1.150%. The average maturity of our long-term debt at March 31, 2017 is approximately twelve years . The average interest expense rate on our total borrowings was approximately 3.5% and 4.2% for the quarters ended March 31, 2017 and 2016 , respectively. We have an existing universal shelf registration statement filed with the Securities and Exchange Commission (SEC) for an indeterminate amount of equity and debt securities for future issuance, subject to our internal limitations on the amount of equity and debt to be issued under this shelf registration statement.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes We conduct business globally and, as a result, UTC or one or more of our subsidiaries files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. In the normal course of business we are subject to examination by taxing authorities throughout the world, including such major jurisdictions as Australia, Belgium, Brazil, Canada, China, France, Germany, Hong Kong, India, Italy, Japan, Mexico, Netherlands, Poland, Singapore, South Korea, Spain, Switzerland, the United Kingdom, and the United States. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations for years before 2005. In the ordinary course of business, there is inherent uncertainty in quantifying our income tax positions. We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances, and information available at the reporting date. It is reasonably possible that over the next 12 months the amount of unrecognized tax benefits may change within a range of a net increase of $45 million to a net decrease of $510 million as a result of additional worldwide uncertain tax positions, the revaluation of current uncertain tax positions arising from developments in examinations, in appeals, in the courts, or the closure of tax statutes. See Note 15, Contingent Liabilities, for discussion regarding uncertain tax positions, included in the above range, related to pending litigation with respect to certain deductions claimed in Germany. During the quarter, the Examination Division of the Internal Revenue Service commenced audit fieldwork for UTC’s 2014 tax year. The audit fieldwork is expected to continue beyond the next 12 months.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	Employee Benefit Plans Pension and Postretirement Plans. We sponsor both funded and unfunded domestic and foreign defined pension and other postretirement benefit plans, and defined contribution plans. Contributions to our plans were as follows: Quarter Ended March 31, (Dollars in millions) 2017 2016 Defined benefit plans $ 46 $ 75 Defined contribution plans 90 78 There were no contributions to our domestic defined benefit pension plans in the quarters ended March 31, 2017 and 2016 . The following table illustrates the components of net periodic benefit cost for our defined pension and other postretirement benefit plans: Pension Benefits Quarter Ended March 31, Other Postretirement Benefits Quarter Ended March 31, (Dollars in millions) 2017 2016 2017 2016 Service cost $ 93 $ 94 $ 1 $ 1 Interest cost 278 302 7 8 Expected return on plan assets (540 ) (556 ) — — Amortization of prior service credit (9 ) (8 ) — — Recognized actuarial net loss (gain) 143 135 (3 ) (1 ) Net settlement and curtailment loss 1 12 — — Total net periodic benefit (income) cost $ (34 ) $ (21 ) $ 5 $ 8 Effective January 1, 2017, a voluntary lump-sum option is available for the frozen final average earnings benefits of certain U.S. salaried employees upon termination of employment after 2016. This option provides participants with the choice of electing to receive a lump-sum payment in lieu of receiving a future monthly pension benefit. This plan change reduced the projected benefit obligation by $170 million .

Restructuring and Other Costs

Restructuring and Other Costs	3 Months Ended
	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Restructuring and Other Costs [Text Block]	Restructuring Costs During the quarter ended March 31, 2017 , we recorded net pre-tax restructuring costs totaling $52 million for new and ongoing restructuring actions. We recorded charges in the segments as follows: (Dollars in millions) Otis $ 5 UTC Climate, Controls & Security 23 UTC Aerospace Systems 23 Eliminations and other 1 Total $ 52 Restructuring charges incurred during the quarter ended March 31, 2017 primarily relate to actions initiated during 2017 and 2016 , and were recorded as follows: (Dollars in millions) Cost of sales $ 21 Selling, general and administrative 31 Total $ 52 2017 Actions . During the quarter ended March 31, 2017 , we recorded net pre-tax restructuring costs totaling $24 million , including $10 million in cost of sales and $14 million in selling, general and administrative expenses. The 2017 actions relate to ongoing cost reduction efforts, including workforce reductions and consolidation of field operations. We are targeting the majority of the remaining workforce and all facility related cost reduction actions for completion during 2017 and 2018 . No specific plans for significant other actions have been finalized at this time. The following table summarizes the accrual balance and utilization for the 2017 restructuring actions for the quarter ended March 31, 2017 : (Dollars in millions) Severance Facility Exit, Lease Termination and Other Costs Total Net pre-tax restructuring costs $ 21 $ 3 $ 24 Utilization and foreign exchange (5 ) (3 ) (8 ) Balance at March 31, 2017 $ 16 $ — $ 16 The following table summarizes expected, incurred and remaining costs for the 2017 restructuring actions by segment: (Dollars in millions) Expected Costs Costs Incurred Quarter Ended March 31, 2017 Remaining Costs at March 31, 2017 Otis $ 5 $ (2 ) $ 3 UTC Climate, Controls & Security 21 (12 ) 9 UTC Aerospace Systems 15 (9 ) 6 Eliminations and other 1 (1 ) — Total $ 42 $ (24 ) $ 18 2016 Actions . During the quarter ended March 31, 2017 , we recorded net pre-tax restructuring costs totaling $22 million for restructuring actions initiated in 2016 , including $5 million in cost of sales and $17 million in selling, general and administrative expenses. The 2016 actions relate to ongoing cost reduction efforts, including workforce reductions, consolidation of field operations, and costs to exit legacy programs. The following table summarizes the accrual balances and utilization for the 2016 restructuring actions for the quarter ended March 31, 2017 : (Dollars in millions) Severance Facility Exit, Lease Termination and Other Costs Total Restructuring accruals at December 31, 2016 $ 63 $ 46 $ 109 Net pre-tax restructuring costs 15 7 22 Utilization and foreign exchange (22 ) (6 ) (28 ) Balance at March 31, 2017 $ 56 $ 47 $ 103 The following table summarizes expected, incurred and remaining costs for the 2016 restructuring actions by segment: (Dollars in millions) Expected Costs Costs Incurred in 2016 Costs Incurred Quarter Ended March 31, 2017 Remaining Costs at March 31, 2017 Otis $ 58 $ (48 ) $ (3 ) $ 7 UTC Climate, Controls & Security 85 (45 ) (6 ) 34 Pratt & Whitney 118 (118 ) — — UTC Aerospace Systems 85 (31 ) (13 ) 41 Total $ 346 $ (242 ) $ (22 ) $ 82 2015 and Prior Actions. As of March 31, 2017 , we have approximately $57 million of accrual balances remaining related to 2015 and prior actions.

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments [Text Block]	Financial Instruments We enter into derivative instruments for risk management purposes only, including derivatives designated as hedging instruments under the Derivatives and Hedging Topic of the FASB ASC and those utilized as economic hedges. We operate internationally and, in the normal course of business, are exposed to fluctuations in interest rates, foreign exchange rates and commodity prices. These fluctuations can increase the costs of financing, investing and operating the business. We have used derivative instruments, including swaps, forward contracts and options to manage certain foreign currency, interest rate and commodity price exposures. The four quarter rolling average of the notional amount of foreign exchange contracts hedging foreign currency transactions was $18.5 billion and $18.3 billion at March 31, 2017 and December 31, 2016 , respectively. The following table summarizes the fair value of derivative instruments as of March 31, 2017 and December 31, 2016 which consist solely of foreign exchange contracts: Asset Derivatives Liability Derivatives (Dollars in millions) March 31, 2017 December 31, 2016 March 31, 2017 December 31, 2016 Derivatives designated as hedging instruments $ 22 $ 15 $ 128 $ 196 Derivatives not designated as hedging instruments 84 155 113 158 As discussed in Note 5, we have issued approximately €2.95 billion of euro-denominated long-term debt and €500 million of outstanding euro-denominated commercial paper borrowings, which qualify as a net investment hedge against our investments in European businesses . As of March 31, 2017, the net investment hedge is deemed to be effective. The amount of gains and losses related to the Company's derivative financial instruments was as follows: Quarter Ended March 31, (Dollars in millions) 2017 2016 Gain recorded in Accumulated other comprehensive loss $ 64 $ 159 Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion) 5 62 Assuming current market conditions continue, a $25 million pre-tax loss is expected to be reclassified from Accumulated other comprehensive loss into Product sales to reflect the fixed prices obtained from foreign exchange hedging within the next 12 months. At March 31, 2017 , all derivative contracts accounted for as cash flow hedges will mature by November 2022 . The effect on the Condensed Consolidated Statement of Operations of foreign exchange contracts not designated as hedging instruments was as follows: Quarter Ended March 31, (Dollars in millions) 2017 2016 Gain recognized in Other income, net $ 12 $ 15 We paid $113 million and received $42 million from settlements of derivative contracts during the quarter ended March 31, 2017 and 2016 , respectively.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Measurements In accordance with the provisions of ASC 820, the following tables provide the valuation hierarchy classification of assets and liabilities that are carried at fair value and measured on a recurring and nonrecurring basis in our Condensed Consolidated Balance Sheet as of March 31, 2017 and December 31, 2016 : March 31, 2017 (Dollars in millions) Total Level 1 Level 2 Level 3 Recurring fair value measurements: Available-for-sale securities $ 316 $ 316 $ — $ — Derivative assets 106 2 104 — Derivative liabilities (241 ) — (241 ) — December 31, 2016 (Dollars in millions) Total Level 1 Level 2 Level 3 Recurring fair value measurements: Available-for-sale securities $ 987 $ 987 $ — $ — Derivative assets 170 — 170 — Derivative liabilities (354 ) — (354 ) — The reduction in value of available-for-sale securities as of March 31, 2017 , as compared to December 31, 2016 , is primarily the result of the sale of UTC Climate, Controls & Security's investments in Watsco, Inc. during the quarter ended March 31, 2017. Valuation Techniques. Our available-for-sale securities include equity investments that are traded in active markets, either domestically or internationally, and are measured at fair value using closing stock prices from active markets. Our derivative assets and liabilities include foreign exchange contracts and commodity derivatives that are measured at fair value using internal models based on observable market inputs such as forward rates, interest rates, our own credit risk and our counterparties' credit risks. As of March 31, 2017 , there were no significant transfers in and out of Level 1 and Level 2. As of March 31, 2017 , there has not been any significant impact to the fair value of our derivative liabilities due to our own credit risk. Similarly, there has not been any significant adverse impact to our derivative assets based on our evaluation of our counterparties' credit risks. The following table provides carrying amounts and fair values of financial instruments that are not carried at fair value in our Condensed Consolidated Balance Sheet at March 31, 2017 and December 31, 2016 : March 31, 2017 December 31, 2016 (Dollars in millions) Carrying Amount Fair Value Carrying Amount Fair Value Long-term receivables $ 143 $ 134 $ 127 $ 121 Customer financing notes receivable 450 428 437 420 Short-term borrowings (1,200 ) (1,200 ) (600 ) (600 ) Long-term debt (excluding capitalized leases) (23,361 ) (25,154 ) (23,280 ) (25,110 ) Long-term liabilities (433 ) (407 ) (457 ) (427 ) The following table provides the valuation hierarchy classification of assets and liabilities that are not carried at fair value in our Condensed Consolidated Balance Sheet as of March 31, 2017 : (Dollars in millions) Total Level 1 Level 2 Level 3 Long-term receivables $ 134 $ — $ 134 $ — Customer financing notes receivable 428 — 428 — Short-term borrowings (1,200 ) — (1,074 ) (126 ) Long-term debt (excluding capitalized leases) (25,154 ) — (24,975 ) (179 ) Long-term liabilities (407 ) — (407 ) — We had commercial aerospace financing and other contractual commitments totaling approximately $14.2 billion and $14.4 billion as of March 31, 2017 and December 31, 2016 , respectively, related to commercial aircraft and certain contractual rights to provide product on new aircraft platforms. Risks associated with changes in interest rates on these commitments are mitigated by the fact that interest rates are variable during the commitment term, and are set at the date of funding based on current market conditions, the fair value of the underlying collateral and the credit worthiness of the customers. As a result, the fair value of these financings is expected to equal the amounts funded.

Long-Term Financing Receivables

Long-Term Financing Receivables	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Long-Term Financing Receivables [Text Block]	Long-Term Financing Receivables Our long-term financing receivables primarily represent balances related to our aerospace businesses, such as long-term trade accounts receivable, leases receivable, and notes receivable. We also have other long-term receivables related to our commercial businesses; however, both the individual and aggregate amounts of those other receivables are not significant. Long-term trade accounts receivable, including unbilled receivables related to long-term aftermarket contracts, are principally amounts arising from the sale of goods and delivery of services with a contractual maturity date or realization period of greater than one year, and are recognized as "Other assets" in our Condensed Consolidated Balance Sheet. Notes and leases receivable represent notes and lease receivables other than receivables related to operating leases, and are recognized as "Customer financing assets" in our Condensed Consolidated Balance Sheet. The following table summarizes the balance by class of aerospace business related long-term receivables as of March 31, 2017 and December 31, 2016 . (Dollars in millions) March 31, 2017 December 31, 2016 Long-term trade accounts receivable $ 855 $ 926 Notes and leases receivable 446 430 Total long-term receivables $ 1,301 $ 1,356 Customer credit ratings range from customers with an extremely strong capacity to meet financial obligations, to customers whose uncollateralized receivable is in default. There can be no assurance that actual results will not differ from estimates or that consideration of these factors in the future will not result in an increase or decrease to the allowance for credit losses on long-term receivables. Based upon the customer credit ratings, approximately 13% of our total long-term receivables were considered to bear high credit risk as of March 31, 2017 and December 31, 2016 . For long-term trade accounts receivable, we evaluate credit risk and collectability individually to determine if an allowance is necessary. Our long-term receivables reflected in the table above, which include reserves of $17 million as of March 31, 2017 and December 31, 2016 , are individually evaluated for impairment. At March 31, 2017 and December 31, 2016 , we did not have any significant balances that are considered to be delinquent, on non-accrual status, past due 90 days or more, or considered to be not recoverable.

Shareowners' Equity and Noncont

Shareowners' Equity and Noncontrolling Interest	3 Months Ended
	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Shareowners' Equity and Noncontrolling Interest [Text Block]	Shareowners' Equity and Noncontrolling Interest A summary of the changes in shareowners' equity and noncontrolling interest comprising total equity for the quarters ended March 31, 2017 and 2016 is provided below: Quarter Ended March 31, 2017 2016 (Dollars in millions) Share-owners' Equity Non-controlling Interest Total Equity Share-owners' Non-controlling Interest Total Equity Equity, beginning of period $ 27,579 $ 1,590 $ 29,169 $ 27,358 $ 1,486 $ 28,844 Comprehensive income for the period: Net income 1,386 82 1,468 1,183 81 1,264 Total other comprehensive (loss) income 1 25 26 275 13 288 Total comprehensive income for the period 1,387 107 1,494 1,458 94 1,552 Common Stock issued under employee plans 79 79 59 59 Common Stock repurchased (933 ) (933 ) — — Dividends on Common Stock (505 ) (505 ) (509 ) (509 ) Dividends on ESOP Common Stock (18 ) (18 ) (18 ) (18 ) Dividends attributable to noncontrolling interest — (5 ) (5 ) (51 ) (51 ) Purchase of subsidiary shares from noncontrolling interest, net — (1 ) (1 ) — (1 ) (1 ) Acquisition of noncontrolling interest — — — 34 34 Other 5 (13 ) (8 ) 5 (12 ) (7 ) Equity, end of period $ 27,594 $ 1,678 $ 29,272 $ 28,353 $ 1,550 $ 29,903 On November 11, 2015, we entered into ASR agreements to repurchase an aggregate of $6 billion of our common stock utilizing the net after-tax proceeds from the sale of Sikorsky. Under the terms of the ASR agreements, we made aggregate payments and received an initial delivery of approximately 51.9 million shares of our common stock in November 2015, representing approximately 85% of the shares expected to be repurchased. The shares associated with the remaining portion of the aggregate purchase were settled upon delivery to us of approximately 2.1 million additional shares of common stock in the quarter ended March 31, 2016 and approximately 8.0 million additional shares of common stock in the quarter ended September 30, 2016. A summary of the changes in each component of accumulated other comprehensive (loss) income, net of tax for the quarters ended March 31, 2017 and 2016 is provided below: (Dollars in millions) Foreign Currency Translation Defined Benefit Pension and Post- retirement Plans Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Hedging (Losses) Gains Accumulated Other Comprehensive (Loss) Income Quarter Ended March 31, 2017 Balance at December 31, 2016 $ (3,480 ) $ (5,045 ) $ 353 $ (162 ) $ (8,334 ) Other comprehensive (loss) income before 121 — (21 ) 50 150 Amounts reclassified, pre-tax — 131 (383 ) 5 (247 ) Tax (benefit) expense reclassified — (48 ) 147 (1 ) 98 Balance at March 31, 2017 $ (3,359 ) $ (4,962 ) $ 96 $ (108 ) $ (8,333 ) (Dollars in millions) Foreign Currency Translation Defined Benefit Pension and Post- retirement Plans Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Hedging (Losses) Gains Accumulated Other Comprehensive (Loss) Income Quarter Ended March 31, 2016 Balance at December 31, 2015 $ (2,438 ) $ (5,135 ) $ 293 $ (339 ) $ (7,619 ) Other comprehensive income (loss) before reclassifications, net 26 (17 ) 38 117 164 Amounts reclassified, pre-tax 1 126 (27 ) 62 162 Tax (benefit) expense reclassified — (46 ) 12 (17 ) (51 ) Balance at March 31, 2016 $ (2,411 ) $ (5,072 ) $ 316 $ (177 ) $ (7,344 ) Amounts reclassified that relate to our defined benefit pension and postretirement plans include amortization of prior service costs and transition obligations, and actuarial net losses recognized during each period presented. These costs are recorded as components of net periodic pension cost for each period presented (see Note 7 for additional details). Amounts reclassified that relate to unrealized gains (losses) on available-for-sale securities, pre-tax includes approximately $380 million of previously unrealized gains reclassified to other income as a result of sales of available-for-sale securities in the quarter ended March 31, 2017 , which consisted primarily of the sale of UTC Climate, Controls & Security's investments in Watsco, Inc. All noncontrolling interests with redemption features, such as put options, that are not solely within our control (redeemable noncontrolling interests) are reported in the mezzanine section of the Condensed Consolidated Balance Sheet, between liabilities and equity, at the greater of redemption value or initial carrying value. Changes in noncontrolling interests that do not result in a change of control, and where there is a difference between fair value and carrying value, are accounted for as equity transactions. There would have been no pro-forma effect on Net income attributable to common shareowners for the quarters ended March 31, 2017 and 2016 had the changes been recorded through net income.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entity Disclosure [Text Block]	Variable Interest Entities Pratt & Whitney holds a 61% net interest in the IAE International Aero Engines AG (IAE) collaboration with MTU Aero Engines AG (MTU) and Japanese Aero Engines Corporation (JAEC) and a 49.5% ownership interest in IAE. IAE's business purpose is to coordinate the design, development, manufacturing and product support of the V2500 program through involvement with the collaborators. Additionally, Pratt & Whitney, JAEC and MTU are participants in International Aero Engines, LLC (IAE LLC), whose business purpose is to coordinate the design, development, manufacturing and product support for the PW1100G-JM engine for the Airbus A320neo aircraft and the PW1400G-JM engine for the Irkut MC21 aircraft. Pratt & Whitney holds a 59% net interest in the collaboration and a 59% ownership interest in IAE LLC. IAE and IAE LLC retain limited equity with the primary economics of the programs passed to the participants. As such, we have determined that IAE and IAE LLC are variable interest entities with Pratt & Whitney the primary beneficiary. IAE and IAE LLC have, therefore, been consolidated. The carrying amounts and classification of assets and liabilities for variable interest entities in our Condensed Consolidated Balance Sheet are as follows: (Dollars in millions) March 31, 2017 December 31, 2016 Current assets $ 3,314 $ 2,722 Noncurrent assets 1,319 1,334 Total assets $ 4,633 $ 4,056 Current liabilities $ 2,883 $ 2,422 Noncurrent liabilities 1,663 1,636 Total liabilities $ 4,546 $ 4,058

Guarantees

Guarantees	3 Months Ended
	Mar. 31, 2017
Service and Product Warranties and Product Performance Guarantees [Abstract]
Guarantees [Text Block]	Guarantees We extend a variety of financial, market value and product performance guarantees to third parties. There have been no material changes to guarantees outstanding since December 31, 2016 . The changes in the carrying amount of service and product warranties and product performance guarantees for the quarter ended March 31, 2017 and 2016 are as follows: (Dollars in millions) 2017 2016 Balance as of January 1 $ 1,199 $ 1,212 Warranties and performance guarantees issued 78 76 Settlements made (56 ) (62 ) Other 1 10 Balance as of March 31 $ 1,222 $ 1,236

Contingent Liabilities

Contingent Liabilities	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities [Text Block]	Contingent Liabilities Summarized below are the matters previously described in Note 17 of the Notes to the Consolidated Financial Statements in our 2016 Annual Report, incorporated by reference in our 2016 Form 10-K, updated as applicable. Except as otherwise noted, while we are unable to predict the final outcome, based on information currently available, we do not believe that resolution of any of the following matters will have a material adverse effect upon our competitive position, results of operations, cash flows or financial condition. Environmental. Our operations are subject to environmental regulation by federal, state and local authorities in the United States and regulatory authorities with jurisdiction over our foreign operations. As described in Note 1 to the Consolidated Financial Statements in our 2016 Annual Report, we have accrued for the costs of environmental remediation activities, including but not limited to investigatory, remediation, operating and maintenance costs and performance guaranties, and periodically reassess these amounts. We believe that the likelihood of incurring losses materially in excess of amounts accrued is remote. Additional information pertaining to environmental matters is included in Note 1 to the Consolidated Financial Statements in our 2016 Annual Report. Government. In the ordinary course of business, the Company and its subsidiaries and our properties are subject to regulatory and governmental examinations, information gathering requests, inquiries, investigations and threatened legal actions and proceedings. For example, we are now, and believe that, in light of the current U.S. Government contracting environment, we will continue to be the subject of one or more U.S. Government investigations. Such U.S. Government investigations often take years to complete and could result in administrative, civil or criminal liabilities, including repayments, fines, treble and other damages, forfeitures, restitution or penalties, or could lead to suspension or debarment of U.S. Government contracting or of export privileges. For instance, if we or one of our business units were charged with wrongdoing as a result of any of these investigations or other government investigations (including violations of certain anti-bribery, environmental or export laws) the U.S. Government could suspend us from bidding on or receiving awards of new U.S. Government contracts pending the completion of legal proceedings. If convicted or found liable, the U.S. Government could fine and debar us from new U.S. Government contracting for a period generally not to exceed three years. The U.S. Government also reserves the right to debar a contractor from receiving new government contracts for fraudulent, criminal or other seriously improper conduct. The U.S. Government could void any contracts found to be tainted by fraud. Our contracts with the U.S. Government are also subject to audits. Like many defense contractors, we have received audit reports, which recommend that certain contract prices should be reduced to comply with various government regulations, including because cost or pricing data we submitted in negotiation of the contract prices or cost accounting practices may not have conformed to government regulations, or that certain payments be delayed or withheld. Some of these audit reports involved substantial amounts. We have made voluntary refunds in those cases we believe appropriate, have settled some allegations and continue to litigate certain cases. In addition, we accrue for liabilities associated with those matters that are probable and can be reasonably estimated. The most likely settlement amount to be incurred is accrued based upon a range of estimates. Where no amount within a range of estimates is more likely, then we accrued the minimum amount. Legal Proceedings. Cost Accounting Standards Claim As previously disclosed, in December 2013, a Divisional Administrative Contracting Officer of the United States Defense Contract Management Agency asserted a claim against Pratt & Whitney to recover overpayments of approximately $177 million plus interest (approximately $65 million through March 31, 2017). The claim is based on Pratt & Whitney's alleged noncompliance with cost accounting standards from January 1, 2005 to December 31, 2012, due to its method of determining the cost of collaborator parts used in the calculation of material overhead costs for government contracts. On March 18, 2014, Pratt & Whitney filed an appeal to the Armed Services Board of Contract Appeals. Pratt & Whitney’s appeal is still pending and we continue to believe the government’s claim is without merit. German Tax Litigation As previously disclosed, UTC has been involved in administrative review proceedings with the German Tax Office, which concern approximately €215 million (approximately $233 million) of tax benefits that we have claimed related to a 1998 reorganization of the corporate structure of Otis operations in Germany. Upon audit, these tax benefits were disallowed by the German Tax Office. UTC estimates interest associated with the aforementioned tax benefits is an additional approximately €118 million (approximately $128 million). On August 3, 2012, we filed suit in the local German Tax Court (Berlin-Brandenburg). In March 2016, the local German Tax Court dismissed our suit, and we have appealed this decision to the German Federal Tax Court (FTC). In 2015, UTC made tax and interest payments to German tax authorities of €275 million (approximately $300 million) in order to avoid additional interest accruals pending final resolution of this matter. In the meantime, we continue vigorously to litigate this matter. Asbestos Matters As previously disclosed, like many other industrial companies, we and our subsidiaries have been named as defendants in lawsuits alleging personal injury as a result of exposure to asbestos integrated into certain of our products or business premises. While we have never manufactured asbestos and no longer incorporate it in any currently-manufactured products, certain of our historical products, like those of many other manufacturers, have contained components incorporating asbestos. A substantial majority of these asbestos-related claims have been dismissed without payment or were 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 involved in asbestos related claims were not material individually or in the aggregate in any year. Our estimated total liability to resolve all pending and unasserted potential future asbestos claims through 2059 is approximately $379 million and is principally recorded in Other long-term liabilities on our Condensed Consolidated Balance Sheet as of March 31, 2017. This amount is on a pre-tax basis, not discounted, and excludes the Company’s legal fees to defend the asbestos claims (which will continue to be expensed by the Company as they are incurred). In addition, the Company has an insurance recovery receivable for probable asbestos related recoveries of approximately $133 million , which is included primarily in Other assets on our Condensed Consolidated Balance Sheet as of March 31, 2017. The amounts recorded by UTC for asbestos-related liabilities and insurance recoveries are based on currently available information and assumptions that we believe are reasonable. Our actual liabilities or insurance recoveries could be higher or lower than those recorded if actual results vary significantly from the assumptions. Key variables in these assumptions include the number and type of new claims to be filed each year, the outcomes or resolution of such claims, the average cost of resolution of each new claim, the amount of insurance available, allocation methodologies, the contractual terms with each insurer with whom we have reached settlements, the resolution of coverage issues with other excess insurance carriers with whom we have not yet achieved settlements, and the solvency risk with respect to our insurance carriers. Other factors that may affect our future liability include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, legal rulings that may be made by state and federal courts, and the passage of state or federal legislation. At least annually, the Company will evaluate all of these factors and, with input from an outside actuarial expert, make any necessary adjustments to both our estimated asbestos liabilities and insurance recoveries. Other. As described in Note 14 of this Form 10-Q and Note 16 to the Consolidated Financial Statements in our 2016 Annual Report, we extend performance and operating cost guarantees beyond our normal warranty and service policies for extended periods on some of our products. We have accrued our estimate of the liability that may result under these guarantees and for service costs that are probable and can be reasonably estimated. We also have other commitments and contingent liabilities related to legal proceedings, self-insurance programs and matters arising out of the normal course of business. We accrue contingencies based upon a range of possible outcomes. If no amount within this range is a better estimate than any other, then we accrue the minimum amount. In the ordinary course of business, the Company and its subsidiaries are also routinely defendants in, parties to or otherwise subject to many pending and threatened legal actions, claims, disputes and proceedings. These matters are often based on alleged violations of contract, product liability, warranty, regulatory, environmental, health and safety, employment, intellectual property, tax and other laws. In some of these proceedings, claims for substantial monetary damages are asserted against the Company and its subsidiaries and could result in fines, penalties, compensatory or treble damages or non-monetary relief. We do not believe that these matters will have a material adverse effect upon our competitive position, results of operations, cash flows or financial condition.

Segment Financial Data

Segment Financial Data	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Segment Financial Data [Text Block]	Segment Financial Data Our operations are classified into four principal segments: Otis, UTC Climate, Controls & Security, Pratt & Whitney, and UTC Aerospace Systems. The segments are generally based on the management structure of the businesses and the grouping of similar operating companies, where each management organization has general operating autonomy over diversified products and services. Results for the quarters ended March 31, 2017 and 2016 are as follows: Net Sales Operating Profits Operating Profit Margins (Dollars in millions) 2017 2016 2017 2016 2017 2016 Otis $ 2,804 $ 2,715 $ 452 $ 466 16.1 % 17.2 % UTC Climate, Controls & Security 3,892 3,728 963 606 24.7 % 16.3 % Pratt & Whitney 3,758 3,588 393 410 10.5 % 11.4 % UTC Aerospace Systems 3,611 3,505 576 538 16.0 % 15.3 % Total segments 14,065 13,536 2,384 2,020 16.9 % 14.9 % Eliminations and other (250 ) (179 ) (13 ) 16 General corporate expenses — — (104 ) (91 ) Consolidated $ 13,815 $ 13,357 $ 2,267 $ 1,945 16.4 % 14.6 % See Note 8 to the Condensed Consolidated Financial Statements for a discussion of restructuring costs included in segment operating results.

Accounting Pronouncements

Accounting Pronouncements	3 Months Ended
	Mar. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Accounting Pronouncements Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers: In May 2014, the FASB issued Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers . In 2015 and 2016, the FASB issued various updates to this ASU as follows: • ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date - delays the effective date of ASU 2014-09 by one year. • ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue Gross versus Net) - clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements. • ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing - clarifies the guidance surrounding licensing arrangements and the identification of performance obligations. • ASU 2016-12, Revenue from Contracts with Customers (Topic 606), Narrow-Scope Improvements and Practical Expedients - addresses implementation issues raised by stakeholders concerning collectability, noncash consideration, presentation of sales tax, and transition. • ASU 2016-20, Revenue from Contracts with Customers (Topic 606), Technical Corrections and Improvements - addresses loan guarantee fees, impairment testing of contract costs, provisions for losses on certain contracts, and various disclosures. ASU 2014-09 and its related amendments (collectively, the New Revenue Standard) are effective for reporting periods beginning after December 15, 2017, and interim periods therein, using either of the following transition methods; (i) a full retrospective adoption reflecting the application of the standard in each prior reporting period, or (ii) a modified retrospective approach with the cumulative effect of adopting recognized through retained earnings at the date of adoption. The New Revenue Standard is expected to change the revenue recognition practices for a number of revenue streams across our businesses, although the most significant impacts will be concentrated within our aerospace units. Several businesses, which currently account for revenue on a “point-in-time basis,” will be required to use an “over time” model as they meet one or more of the mandatory criteria established in the New Revenue Standard. Revenue will be recognized based on percentage-of-completion for certain U.S. Government aerospace contracts; and aerospace aftermarket service work performed on a time and materials basis. For these businesses, unrecognized sales and operating profits related to the satisfied portion of the performance obligations of contracts in process as of the date of adoption will be recorded through retained earnings. The ongoing effect of recording revenue on a percentage-of-completion basis within these businesses is not expected to be material. In addition to the forgoing, our aerospace businesses will also incur changes related to the timing of manufacturing cost recognition and certain engineering and development costs. In most circumstances, our commercial aerospace businesses will identify the performance obligation, or the unit of accounting, as the individual original equipment (OEM) unit; revenues and costs to manufacture each unit will be recognized upon OEM unit delivery. Under current practice, the unit of accounting is the contract, and early-contract OEM unit costs in excess of the average expected over the contract are capitalized and amortized over lower-cost units later in the contract. With the adoption of the New Revenue Standard, any deferred unit costs in excess of the contract average will be eliminated through retained earnings and will not be amortized into future earnings. As of March 31, 2017, capitalized deferred unit costs in excess of the contract average are $275 million, which is expected to increase during 2017, prior to adoption of the New Revenue Standard. In regards to costs incurred for the engineering and development of aerospace products under contract with customers, we generally expense as incurred unless there is a contractually guaranteed right of recovery. Any customer funding received for such efforts is recognized when earned, with the corresponding costs recognized as cost of sales. The New Revenue Standard requires customer funding of OEM product engineering and development to be deferred and recognized as revenue as the OEM products are delivered to the customer. The New Revenue Standard also requires product engineering and development costs to be capitalized as contract fulfillment costs, to the extent recoverable from the associated contract margin, and subsequently amortized as the OEM products are delivered to the customer. For contracts that are open as of the adoption date, previously recognized customer funding will be established as a contract liability. We continue to evaluate the implications of the standard change. We intend to adopt the New Revenue Standard effective January 1, 2018 using the modified retrospective approach. Other Accounting Pronouncements : In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . This ASU modifies how entities measure equity investments and present changes in the fair value of financial liabilities. Upon adoption, investments that do not result in consolidation and are not accounted for under the equity method generally must be carried at fair value, with changes in fair value recognized in net income. As discussed in Note 12, we have approximately $96 million of unrealized gains on these securities recorded in Accumulated other comprehensive loss in our Condensed Consolidated Balance Sheet as of March 31, 2017. To the extent currently unrealized gains or losses on these investments are not realized through sale or other actions prior to the date of adoption, these amounts would be recorded directly to retained earnings upon adoption. The provisions of this ASU are effective for years beginning after December 15, 2017. In February 2016, the FASB issued ASU 2016- 02, Leases (Topic 842) . The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the Condensed Consolidated Statement of Operations. In addition, this standard requires a lessor to classify leases as either sales-type, finance or operating. A lease will be treated as a sale if it transfers all of the risks and rewards, as well as control of the underlying asset, to the lessee. If risks and rewards are conveyed without the transfer of control, the lease is treated as financing. If the lessor doesn’t convey risks and rewards or control, the lease is treated as operating. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for lessees for capital and operating leases and lessors for sales-type, direct financing, and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. While we are still evaluating the impact of our pending adoption of the new standard on our consolidated financial statements, we expect that upon adoption we will recognize ROU assets and lease liabilities and that the amounts could be material. We do not expect the ASU to have a material impact on our cash flows or results of operations. In June 2016, the FASB issued Accounting Standards Update (ASU) 2016-13, Financial Instruments - Credit Losses (Topic 328): Measurement of Credit Losses on Financial Instruments . This ASU requires that certain financial assets, including those measured at amortized cost basis, be presented at the net amount expected to be collected, utilizing an impairment model known as the current expected credit loss model. In addition, available-for-sale debt securities will no longer use the concept of "other than temporary" when considering credit losses. Under this ASU, entities must use an allowance approach for credit losses on available-for-sale debt securities, and the allowance must be limited to the amount at which a security's fair value is below the amortized cost of the asset. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted. We do not expect this ASU to have a significant impact on our financial statements or disclosures. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory . This ASU requires the income tax consequences of an intra-entity transfer of an asset, other than inventory, to be recognized when the transfer occurs. Two common examples of assets included in the scope of this update are intellectual property and property, plant, and equipment. The provisions of this ASU are effective for years beginning after December 15, 2017, with early adoption permitted. We are currently evaluating the impact of this ASU. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business . This ASU provides a new framework that will assist in the evaluation of whether business combination transactions should be accounted as acquisition of a business or a group of assets, as well as specifying the minimum required inputs and processes necessary to be a business. The provisions of this ASU are effective for years beginning after December 15, 2017, with early adoption permitted. We are currently evaluating the impact of this ASU. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . This ASU eliminates Step 2 of the current goodwill impairment test, which requires a hypothetical purchase price allocation to measure goodwill impairment. A goodwill impairment loss will instead be measured at the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the recorded amount of goodwill. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted for any impairment test performed on testing dates after January 1, 2017. We do not expect this ASU to have a significant impact on our financial statements or disclosures. In March 2017, the FASB issued ASU 2017-07, Compensation—Retirement Benefits (Topic 715), Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost . This ASU requires an employer to report the service cost component of net periodic pension benefit cost in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period, with other cost components presented separately from the service cost component and outside of income from operations. This ASU also allows only the service cost component of net periodic pension benefit cost to be eligible for capitalization when applicable. The provisions of this ASU are effective for years beginning after December 15, 2017. Provisions related to presentation of the service cost components versus other cost components must be applied retrospectively, while provisions related to service cost component eligibility for capitalization must be applied prospectively. We are currently evaluating the impact of this ASU.This ASU impacts only the presentation of net periodic pension cost/benefit and therefore does not have a significant impact on the financial statements.

Acquisitions, Dispositions, G24

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Schedule of Goodwill [Table Text Block]	Changes in our goodwill balances for the quarter ended March 31, 2017 were as follows: (Dollars in millions) Balance as of Goodwill Resulting from Business Combinations Foreign Currency Translation and Other Balance as of Otis $ 1,575 $ (7 ) $ 57 $ 1,625 UTC Climate, Controls & Security 9,487 41 93 9,621 Pratt & Whitney 1,511 — — 1,511 UTC Aerospace Systems 14,483 — 30 14,513 Total Segments 27,056 34 180 27,270 Eliminations and other 3 — — 3 Total $ 27,059 $ 34 $ 180 $ 27,273
Intangible Assets Disclosure [Table Text Block]	Identifiable intangible assets are comprised of the following: March 31, 2017 December 31, 2016 (Dollars in millions) Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Amortized: Service portfolios $ 2,073 $ (1,412 ) $ 1,995 $ (1,344 ) Patents and trademarks 384 (208 ) 378 (201 ) Collaboration intangible assets 3,825 (255 ) 3,724 (211 ) Customer relationships and other 12,967 (3,640 ) 12,798 (3,480 ) 19,249 (5,515 ) 18,895 (5,236 ) Unamortized: Trademarks and other 2,046 — 2,025 — Total $ 21,295 $ (5,515 ) $ 20,920 $ (5,236 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	The following is the expected amortization of intangible assets for the years 2017 through 2022 , which reflects the pattern of expected economic benefit on certain aerospace intangible assets. (Dollars in millions) Remaining 2017 2018 2019 2020 2021 2022 Amortization expense $ 623 $ 855 $ 868 $ 848 $ 817 $ 805

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Quarter Ended March 31, (Dollars in millions, except per share amounts; shares in millions) 2017 2016 Net income attributable to common shareowners: Net income from continuing operations $ 1,386 $ 1,172 Income from discontinued operations — 11 Net income attributable to common shareowners $ 1,386 $ 1,183 Basic weighted average number of shares outstanding 793.5 825.0 Stock awards and equity units 8.8 6.3 Diluted weighted average number of shares outstanding 802.3 831.3 Earnings Per Share of Common Stock - Basic: Net income from continuing operations $ 1.75 $ 1.42 Income from discontinued operations — 0.01 Net income attributable to common shareowners 1.75 1.43 Earnings Per Share of Common Stock - Diluted: Net income from continuing operations $ 1.73 $ 1.41 Income from discontinued operations — 0.01 Net income attributable to common shareowners 1.73 1.42

Inventories and Contracts in 26

Inventories and Contracts in Progress (Tables)	3 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	(Dollars in millions) March 31, 2017 December 31, 2016 Raw materials $ 2,154 $ 2,040 Work-in-process 3,075 2,787 Finished goods 3,528 3,305 Contracts in progress 9,592 9,395 18,349 17,527 Less: Progress payments, secured by lien, on U.S. Government contracts (131 ) (130 ) Billings on contracts in progress (8,832 ) (8,693 ) $ 9,386 $ 8,704

Borrowings and Lines of Credit

Borrowings and Lines of Credit (Tables)	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Schedule of Short-Term Debt [Table Text Block]	(Dollars in millions) March 31, 2017 December 31, 2016 Commercial paper $ 1,074 $ 522 Other borrowings 126 79 Total short-term borrowings $ 1,200 $ 601
Schedule of Long-term Debt [Table Text Block]	Long-term debt consisted of the following: (Dollars in millions) March 31, 2017 December 31, 2016 1.800% notes due 2017 1 $ 1,500 $ 1,500 6.800% notes due 2018 99 99 EURIBOR plus 0.800% floating rate notes due 2018 (€750 million principal value) 2 811 783 1.778% junior subordinated notes due 2018 1,100 1,100 LIBOR plus 0.350% floating rate notes due 2019 3 350 350 1.500% notes due 2019 1 650 650 8.875% notes due 2019 271 271 4.875% notes due 2020 1 171 171 4.500% notes due 2020 1 1,250 1,250 8.750% notes due 2021 250 250 1.950% notes due 2021 1 750 750 1.125% notes due 2021 (€950 million principal value) 1 1,027 992 3.100% notes due 2022 1 2,300 2,300 1.250% notes due 2023 (€750 million principal value) 1 811 783 1.875% notes due 2026 (€500 million principal value) 1 540 522 2.650% notes due 2026 1 1,150 1,150 7.100% notes due 2027 141 141 6.700% notes due 2028 400 400 7.500% notes due 2029 1 550 550 5.400% notes due 2035 1 600 600 6.050% notes due 2036 1 600 600 6.800% notes due 2036 1 134 134 7.000% notes due 2038 159 159 6.125% notes due 2038 1 1,000 1,000 5.700% notes due 2040 1 1,000 1,000 4.500% notes due 2042 1 3,500 3,500 4.150% notes due 2045 1 850 850 3.750% notes due 2046 1 1,100 1,100 Project financing obligations 130 155 Other (including capitalized leases) 188 189 Total principal long-term debt 23,382 23,299 Other (fair market value adjustments and discounts) — 1 Total long-term debt 23,382 23,300 Less: current portion 2,484 1,603 Long-term debt, net of current portion $ 20,898 $ 21,697 1 We may redeem these notes at our option pursuant to their terms. 2 The three-month EURIBOR rate as of March 31, 2017 was approximately -0.329%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation. 3 The three-month LIBOR rate as of March 31, 2017 was approximately 1.150%.

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	Contributions to our plans were as follows: Quarter Ended March 31, (Dollars in millions) 2017 2016 Defined benefit plans $ 46 $ 75 Defined contribution plans 90 78 There were no contributions to our domestic defined benefit pension plans in the quarters ended March 31, 2017 and 2016 . The following table illustrates the components of net periodic benefit cost for our defined pension and other postretirement benefit plans: Pension Benefits Quarter Ended March 31, Other Postretirement Benefits Quarter Ended March 31, (Dollars in millions) 2017 2016 2017 2016 Service cost $ 93 $ 94 $ 1 $ 1 Interest cost 278 302 7 8 Expected return on plan assets (540 ) (556 ) — — Amortization of prior service credit (9 ) (8 ) — — Recognized actuarial net loss (gain) 143 135 (3 ) (1 ) Net settlement and curtailment loss 1 12 — — Total net periodic benefit (income) cost $ (34 ) $ (21 ) $ 5 $ 8

Restructuring and Other Costs (

Restructuring and Other Costs (Tables)	3 Months Ended
	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring and Related Costs [Table Text Block]	We recorded charges in the segments as follows: (Dollars in millions) Otis $ 5 UTC Climate, Controls & Security 23 UTC Aerospace Systems 23 Eliminations and other 1 Total $ 52 Restructuring charges incurred during the quarter ended March 31, 2017 primarily relate to actions initiated during 2017 and 2016 , and were recorded as follows: (Dollars in millions) Cost of sales $ 21 Selling, general and administrative 31 Total $ 52
Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring and Related Costs [Table Text Block]	The following table summarizes expected, incurred and remaining costs for the 2017 restructuring actions by segment: (Dollars in millions) Expected Costs Costs Incurred Quarter Ended March 31, 2017 Remaining Costs at March 31, 2017 Otis $ 5 $ (2 ) $ 3 UTC Climate, Controls & Security 21 (12 ) 9 UTC Aerospace Systems 15 (9 ) 6 Eliminations and other 1 (1 ) — Total $ 42 $ (24 ) $ 18
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the accrual balance and utilization for the 2017 restructuring actions for the quarter ended March 31, 2017 : (Dollars in millions) Severance Facility Exit, Lease Termination and Other Costs Total Net pre-tax restructuring costs $ 21 $ 3 $ 24 Utilization and foreign exchange (5 ) (3 ) (8 ) Balance at March 31, 2017 $ 16 $ — $ 16
Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring and Related Costs [Table Text Block]	The following table summarizes expected, incurred and remaining costs for the 2016 restructuring actions by segment: (Dollars in millions) Expected Costs Costs Incurred in 2016 Costs Incurred Quarter Ended March 31, 2017 Remaining Costs at March 31, 2017 Otis $ 58 $ (48 ) $ (3 ) $ 7 UTC Climate, Controls & Security 85 (45 ) (6 ) 34 Pratt & Whitney 118 (118 ) — — UTC Aerospace Systems 85 (31 ) (13 ) 41 Total $ 346 $ (242 ) $ (22 ) $ 82
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the accrual balances and utilization for the 2016 restructuring actions for the quarter ended March 31, 2017 : (Dollars in millions) Severance Facility Exit, Lease Termination and Other Costs Total Restructuring accruals at December 31, 2016 $ 63 $ 46 $ 109 Net pre-tax restructuring costs 15 7 22 Utilization and foreign exchange (22 ) (6 ) (28 ) Balance at March 31, 2017 $ 56 $ 47 $ 103

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The following table summarizes the fair value of derivative instruments as of March 31, 2017 and December 31, 2016 which consist solely of foreign exchange contracts: Asset Derivatives Liability Derivatives (Dollars in millions) March 31, 2017 December 31, 2016 March 31, 2017 December 31, 2016 Derivatives designated as hedging instruments $ 22 $ 15 $ 128 $ 196 Derivatives not designated as hedging instruments 84 155 113 158
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Table Text Block]	The amount of gains and losses related to the Company's derivative financial instruments was as follows: Quarter Ended March 31, (Dollars in millions) 2017 2016 Gain recorded in Accumulated other comprehensive loss $ 64 $ 159 Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion) 5 62
Other Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Table Text Block]	The effect on the Condensed Consolidated Statement of Operations of foreign exchange contracts not designated as hedging instruments was as follows: Quarter Ended March 31, (Dollars in millions) 2017 2016 Gain recognized in Other income, net $ 12 $ 15

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]	In accordance with the provisions of ASC 820, the following tables provide the valuation hierarchy classification of assets and liabilities that are carried at fair value and measured on a recurring and nonrecurring basis in our Condensed Consolidated Balance Sheet as of March 31, 2017 and December 31, 2016 : March 31, 2017 (Dollars in millions) Total Level 1 Level 2 Level 3 Recurring fair value measurements: Available-for-sale securities $ 316 $ 316 $ — $ — Derivative assets 106 2 104 — Derivative liabilities (241 ) — (241 ) — December 31, 2016 (Dollars in millions) Total Level 1 Level 2 Level 3 Recurring fair value measurements: Available-for-sale securities $ 987 $ 987 $ — $ — Derivative assets 170 — 170 — Derivative liabilities (354 ) — (354 ) —
Fair Value, by Balance Sheet Grouping [Table Text Block]	The following table provides carrying amounts and fair values of financial instruments that are not carried at fair value in our Condensed Consolidated Balance Sheet at March 31, 2017 and December 31, 2016 : March 31, 2017 December 31, 2016 (Dollars in millions) Carrying Amount Fair Value Carrying Amount Fair Value Long-term receivables $ 143 $ 134 $ 127 $ 121 Customer financing notes receivable 450 428 437 420 Short-term borrowings (1,200 ) (1,200 ) (600 ) (600 ) Long-term debt (excluding capitalized leases) (23,361 ) (25,154 ) (23,280 ) (25,110 ) Long-term liabilities (433 ) (407 ) (457 ) (427 ) The following table provides the valuation hierarchy classification of assets and liabilities that are not carried at fair value in our Condensed Consolidated Balance Sheet as of March 31, 2017 : (Dollars in millions) Total Level 1 Level 2 Level 3 Long-term receivables $ 134 $ — $ 134 $ — Customer financing notes receivable 428 — 428 — Short-term borrowings (1,200 ) — (1,074 ) (126 ) Long-term debt (excluding capitalized leases) (25,154 ) — (24,975 ) (179 ) Long-term liabilities (407 ) — (407 ) —

Long-Term Financing Receivabl32

Long-Term Financing Receivables (Tables)	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Financing Receivable Credit Quality Indicators [Table Text Block]	The following table summarizes the balance by class of aerospace business related long-term receivables as of March 31, 2017 and December 31, 2016 . (Dollars in millions) March 31, 2017 December 31, 2016 Long-term trade accounts receivable $ 855 $ 926 Notes and leases receivable 446 430 Total long-term receivables $ 1,301 $ 1,356

Shareowners' Equity and Nonco33

Shareowners' Equity and Noncontrolling Interest (Tables)	3 Months Ended
	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Schedule of Stockholders Equity [Table Text Block]	A summary of the changes in shareowners' equity and noncontrolling interest comprising total equity for the quarters ended March 31, 2017 and 2016 is provided below: Quarter Ended March 31, 2017 2016 (Dollars in millions) Share-owners' Equity Non-controlling Interest Total Equity Share-owners' Non-controlling Interest Total Equity Equity, beginning of period $ 27,579 $ 1,590 $ 29,169 $ 27,358 $ 1,486 $ 28,844 Comprehensive income for the period: Net income 1,386 82 1,468 1,183 81 1,264 Total other comprehensive (loss) income 1 25 26 275 13 288 Total comprehensive income for the period 1,387 107 1,494 1,458 94 1,552 Common Stock issued under employee plans 79 79 59 59 Common Stock repurchased (933 ) (933 ) — — Dividends on Common Stock (505 ) (505 ) (509 ) (509 ) Dividends on ESOP Common Stock (18 ) (18 ) (18 ) (18 ) Dividends attributable to noncontrolling interest — (5 ) (5 ) (51 ) (51 ) Purchase of subsidiary shares from noncontrolling interest, net — (1 ) (1 ) — (1 ) (1 ) Acquisition of noncontrolling interest — — — 34 34 Other 5 (13 ) (8 ) 5 (12 ) (7 ) Equity, end of period $ 27,594 $ 1,678 $ 29,272 $ 28,353 $ 1,550 $ 29,903
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	A summary of the changes in each component of accumulated other comprehensive (loss) income, net of tax for the quarters ended March 31, 2017 and 2016 is provided below: (Dollars in millions) Foreign Currency Translation Defined Benefit Pension and Post- retirement Plans Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Hedging (Losses) Gains Accumulated Other Comprehensive (Loss) Income Quarter Ended March 31, 2017 Balance at December 31, 2016 $ (3,480 ) $ (5,045 ) $ 353 $ (162 ) $ (8,334 ) Other comprehensive (loss) income before 121 — (21 ) 50 150 Amounts reclassified, pre-tax — 131 (383 ) 5 (247 ) Tax (benefit) expense reclassified — (48 ) 147 (1 ) 98 Balance at March 31, 2017 $ (3,359 ) $ (4,962 ) $ 96 $ (108 ) $ (8,333 ) (Dollars in millions) Foreign Currency Translation Defined Benefit Pension and Post- retirement Plans Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Hedging (Losses) Gains Accumulated Other Comprehensive (Loss) Income Quarter Ended March 31, 2016 Balance at December 31, 2015 $ (2,438 ) $ (5,135 ) $ 293 $ (339 ) $ (7,619 ) Other comprehensive income (loss) before reclassifications, net 26 (17 ) 38 117 164 Amounts reclassified, pre-tax 1 126 (27 ) 62 162 Tax (benefit) expense reclassified — (46 ) 12 (17 ) (51 ) Balance at March 31, 2016 $ (2,411 ) $ (5,072 ) $ 316 $ (177 ) $ (7,344 )

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2017
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Schedule of Variable Interest Entities [Table Text Block]	The carrying amounts and classification of assets and liabilities for variable interest entities in our Condensed Consolidated Balance Sheet are as follows: (Dollars in millions) March 31, 2017 December 31, 2016 Current assets $ 3,314 $ 2,722 Noncurrent assets 1,319 1,334 Total assets $ 4,633 $ 4,056 Current liabilities $ 2,883 $ 2,422 Noncurrent liabilities 1,663 1,636 Total liabilities $ 4,546 $ 4,058

Guarantees (Tables)

Guarantees (Tables)	3 Months Ended
	Mar. 31, 2017
Service and Product Warranties and Product Performance Guarantees [Abstract]
Product Warranty Disclosure [Table Text Block]	The changes in the carrying amount of service and product warranties and product performance guarantees for the quarter ended March 31, 2017 and 2016 are as follows: (Dollars in millions) 2017 2016 Balance as of January 1 $ 1,199 $ 1,212 Warranties and performance guarantees issued 78 76 Settlements made (56 ) (62 ) Other 1 10 Balance as of March 31 $ 1,222 $ 1,236

Segment Financial Data (Tables)

Segment Financial Data (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Results for the quarters ended March 31, 2017 and 2016 are as follows: Net Sales Operating Profits Operating Profit Margins (Dollars in millions) 2017 2016 2017 2016 2017 2016 Otis $ 2,804 $ 2,715 $ 452 $ 466 16.1 % 17.2 % UTC Climate, Controls & Security 3,892 3,728 963 606 24.7 % 16.3 % Pratt & Whitney 3,758 3,588 393 410 10.5 % 11.4 % UTC Aerospace Systems 3,611 3,505 576 538 16.0 % 15.3 % Total segments 14,065 13,536 2,384 2,020 16.9 % 14.9 % Eliminations and other (250 ) (179 ) (13 ) 16 General corporate expenses — — (104 ) (91 ) Consolidated $ 13,815 $ 13,357 $ 2,267 $ 1,945 16.4 % 14.6 %

Acquisitions, Dispositions, G37

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (General Information) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Acquisition Cost Of Acquired Entities and Interest in Affiliates	$ 95

Acquisition, Dispositions, Good

Acquisition, Dispositions, Goodwill and Other Intangible Assets (Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
Goodwill [Line Items]
Goodwill - Beginning Balance	$ 27,059
Goodwill Resulting from Business Combinations	34
Goodwill - Foreign Currency Translation and Other	180
Goodwill - Ending Balance	27,273
Otis [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,575
Goodwill Resulting from Business Combinations	(7)
Goodwill - Foreign Currency Translation and Other	57
Goodwill - Ending Balance	1,625
UTC Climate, Controls & Security [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	9,487
Goodwill Resulting from Business Combinations	41
Goodwill - Foreign Currency Translation and Other	93
Goodwill - Ending Balance	9,621
Pratt & Whitney [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,511
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	0
Goodwill - Ending Balance	1,511
UTC Aerospace Systems [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	14,483
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	30
Goodwill - Ending Balance	14,513
Total Segments [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	27,056
Goodwill Resulting from Business Combinations	34
Goodwill - Foreign Currency Translation and Other	180
Goodwill - Ending Balance	27,270
Eliminations and other [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	3
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	0
Goodwill - Ending Balance	$ 3

Acquisitions, Dispositions, G39

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 19,249	$ 18,895
Accumulated Amortization	5,515	5,236
Unamortized: Trademarks and Other	2,046	2,025
Total Intangible Assets Gross Excluding Goodwill	21,295	20,920
Service portfolios [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	2,073	1,995
Accumulated Amortization	1,412	1,344
Patents and trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	384	378
Accumulated Amortization	208	201
Collaboration intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	3,825	3,724
Accumulated Amortization	255	211
Customer relationships and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	12,967	12,798
Accumulated Amortization	$ 3,640	$ 3,480

Acquisitions, Dispositions, G40

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Amortization of Intangible Assets	$ 205	$ 187
Amortization Expense, Remaining 2017	623
Amortization Expense, 2018	855
Amortization Expense, 2019	868
Amortization Expense, 2020	848
Amortization Expense, 2021	817
Amortization Expense, 2022	$ 805

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Description and Timing of Disposal	On November 6, 2015, we completed the sale of Sikorsky to Lockheed Martin Corp.
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax [Abstract]
Discontinued Operations: (Loss) gain on disposal	$ 0	$ 18
Net Cash Provided by (Used in) Discontinued Operations [Abstract]
Net cash outflows from discontinued operations	$ 0	$ (2,227)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income attributable to common shareowners:
Net income from continuing operations	$ 1,386	$ 1,172
Income from discontinued operations	0	11
Net income attributable to common shareowners	$ 1,386	$ 1,183
Basic weighted average number of shares outstanding	793.5	825
Stock awards and equity units	8.8	6.3
Diluted weighted average number of shares outstanding	802.3	831.3
Earnings Per Share of Common Stock - Basic:
Net income from continuing operations	$ 1.75	$ 1.42
Income from discontinued operations	0	0.01
Net income attributable to common shareowners	1.75	1.43
Earnings Per Share of Common Stock - Diluted:
Net income from continuing operations	1.73	1.41
Income from discontinued operations	0	0.01
Net income attributable to common shareowners	$ 1.73	$ 1.42
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	12.2	16.4

Inventories and Contracts in 43

Inventories and Contracts in Progress (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Raw materials	$ 2,154	$ 2,040
Work-in-process	3,075	2,787
Finished goods	3,528	3,305
Contracts in progress	9,592	9,395
Inventory before payments and billings	18,349	17,527
Progress payments, secured by lien, on U.S. Government contracts	131	130
Billings on contracts in progress	8,832	8,693
Inventories and contracts in progress, net	9,386	8,704
Inventory [Line Items]
Inventory Costs in Excess of Average Cost Per Unit	275	233
UTC Aerospace Systems [Member]
Inventory [Line Items]
Other Inventory, Capitalized Costs, Gross	$ 127	$ 140

Borrowings and Lines of Credi44

Borrowings and Lines of Credit (Short-Term Borrowings) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Short-term Debt [Line Items]
Commercial paper	$ 1,074	$ 522
Other borrowings	126	79
Total short-term borrowings	$ 1,200	$ 601

Borrowing and Lines of Credit (

Borrowing and Lines of Credit (Narrative) (Details) - 3 months ended Mar. 31, 2017 € in Millions	USD ($)	EUR (€)
Line of Credit Facility [Line Items]
Aggregate Line of Credit Facility Maximum Borrowing Capacity	$ 4,350,000,000
Maximum Commercial Paper Borrowing Authority	4,350,000,000
Commercial paper, euro-denominated	540,000,000	€ 500
Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Long-term Line of Credit	0
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,200,000,000
Line of Credit Facility, Expiration Date	Aug. 5, 2021
Multicurrency Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Long-term Line of Credit	$ 0
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,150,000,000
Line of Credit Facility, Expiration Date	Aug. 5, 2021

Borrowings and Lines of Credi46

Borrowings and Lines of Credit (Long-Term Debt) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Project financing obligations		$ 130	$ 155
Other (including capitalized leases)		188	189
Total principal long-term debt		23,382	23,299
Other (fair market value adjustments and discounts)		0	1
Total long-term debt		23,382	23,300
Less: current portion		2,484	1,603
Long-term debt, net of current portion		$ 20,898	21,697
Notes 1.800% Due 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.80%
Debt Instrument, Maturity Date, Description		2,017
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 1,500	1,500
Notes 6.800% Due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.80%
Debt Instrument, Maturity Date, Description		2,018
Debt Instrument, Carrying Amount		$ 99	99
Floating rate notes due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		2,018
Debt Instrument, Call Feature		The three-month EURIBOR rate as of March 31, 2017 was approximately -0.329%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation.
Debt Instrument, Carrying Amount	[2]	$ 811	783
Debt Instrument, Interest Rate Terms		EURIBOR plus 0.800% floating rate notes due 2018 (€750 million principal value) 2
Notes 1.778% due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.778%
Debt Instrument, Maturity Date, Description		2,018
Debt Instrument, Carrying Amount		$ 1,100	1,100
LIBOR plus 0.350% floating rate notes due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		2,019
Debt Instrument, Call Feature		The three-month LIBOR rate as of March 31, 2017 was approximately 1.150%.
Debt Instrument, Carrying Amount		$ 350	350
Debt Instrument, Interest Rate Terms		LIBOR plus 0.350% floating rate notes due 2019 3
Notes 1.500% notes 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.50%
Debt Instrument, Maturity Date, Description		2,019
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount		$ 650	650
Notes 8.875% Due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.875%
Debt Instrument, Maturity Date, Description		2,019
Debt Instrument, Carrying Amount		$ 271	271
Notes 4.875% Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.875%
Debt Instrument, Maturity Date, Description		2,020
Debt Instrument, Carrying Amount		$ 171	171
Notes 4.500% Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.50%
Debt Instrument, Maturity Date, Description		2,020
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 1,250	1,250
Notes 8.750% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.75%
Debt Instrument, Maturity Date, Description		2,021
Debt Instrument, Carrying Amount		$ 250	250
Notes 1.950% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		2,021
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount		$ 750	750
Debt Instrument, Interest Rate Terms		0.01950
Note 1.125% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.125%
Debt Instrument, Maturity Date, Description		2,021
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[3]	$ 1,027	992
Notes 3.100% Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.10%
Debt Instrument, Maturity Date, Description		2,022
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 2,300	2,300
Notes 1.250% due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.25%
Debt Instrument, Maturity Date, Description		2,023
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[3]	$ 811	783
Notes 1.875% Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.875%
Debt Instrument, Maturity Date, Description		2,026
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount		$ 540	522
Notes 2.650% Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.65%
Debt Instrument, Maturity Date, Description		2,026
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount		$ 1,150	1,150
Notes 7.100% Due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.10%
Debt Instrument, Maturity Date, Description		2,027
Debt Instrument, Carrying Amount		$ 141	141
Notes 6.700% Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.70%
Debt Instrument, Maturity Date, Description		2,028
Debt Instrument, Carrying Amount		$ 400	400
Notes 7.500% Due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.50%
Debt Instrument, Maturity Date, Description		2,029
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 550	550
Notes 5.400% Due 2035 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.40%
Debt Instrument, Maturity Date, Description		2,035
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 600	600
Notes 6.050% Due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.05%
Debt Instrument, Maturity Date, Description		2,036
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 600	600
Notes 6.800% Due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.80%
Debt Instrument, Maturity Date, Description		2,036
Debt Instrument, Carrying Amount		$ 134	134
Notes 7.000% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.00%
Debt Instrument, Maturity Date, Description		2,038
Debt Instrument, Carrying Amount		$ 159	159
Notes 6.125% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.125%
Debt Instrument, Maturity Date, Description		2,038
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 1,000	1,000
Notes 5.700% Due 2040 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.70%
Debt Instrument, Maturity Date, Description		2,040
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 1,000	1,000
Notes 4.500% Due 2042 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.50%
Debt Instrument, Maturity Date, Description		2,042
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount	[1]	$ 3,500	3,500
Notes 4.150% Due 2045 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.15%
Debt Instrument, Maturity Date, Description		2,045
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount		$ 850	850
Notes 3.750% Due 2046 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		2,046
Debt Instrument, Call Feature		We may redeem these notes at our option pursuant to their terms.
Debt Instrument, Carrying Amount		$ 1,100	$ 1,100
Debt Instrument, Interest Rate Terms		.03750
[1]	We may redeem these notes at our option pursuant to their terms.
[2]	The three-month EURIBOR rate as of March 31, 2017 was approximately -0.329%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation.
[3]	The three-month LIBOR rate as of March 31, 2017 was approximately 1.150%.

Borrowings and Lines of Credi47

Borrowings and Lines of Credit Borrowings and lines of Credit (Current Year Actions) (Details)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	3.50%	4.20%
Average Years of Maturity of Long Term Debt	twelve years

Income Taxes (Unrecognized Tax

Income Taxes (Unrecognized Tax Benefit Changes) (Details) $ in Millions	Mar. 31, 2017USD ($)
Minimum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	$ 45
Maximum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	$ 510

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Contributions - Defined benefit plans	$ 46	$ 75
Contributions - Defined contribution plans	90	78
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	93	94
Interest cost	278	302
Expected return on plan assets	540	556
Amortization of prior service credit	(9)	(8)
Recognized actuarial net loss (gain)	(143)	(135)
Net settlement and curtailment loss	(1)	(12)
Total net periodic benefit (income) cost	(34)	(21)
Defined Benefit Plan, Effect of Plan Amendment on Accumulated Benefit Obligation	170
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	7	8
Expected return on plan assets	0	0
Amortization of prior service credit	0	0
Recognized actuarial net loss (gain)	3	1
Net settlement and curtailment loss	0	0
Total net periodic benefit (income) cost	$ 5	$ 8

Restructuring and Other Costs50

Restructuring and Other Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 52
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	21
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	31
Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	24
Restructuring Reserve	16
Net pre-tax restructuring costs (reversals)	24
Utilization and foreign exchange	8
Expected Costs	42
Remaining Costs	18
Current Year Actions [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	10
Current Year Actions [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	14
Current Year Actions [Member] | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	16
Net pre-tax restructuring costs (reversals)	21
Utilization and foreign exchange	5
Current Year Actions [Member] | Facility Exit, Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Net pre-tax restructuring costs (reversals)	3
Utilization and foreign exchange	3
Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	22
Restructuring Reserve	103	$ 109
Net pre-tax restructuring costs (reversals)	22	242
Utilization and foreign exchange	28
Expected Costs	346
Remaining Costs	82
Prior Year Actions [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	5
Prior Year Actions [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	17
Prior Year Actions [Member] | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	56	63
Net pre-tax restructuring costs (reversals)	15
Utilization and foreign exchange	22
Prior Year Actions [Member] | Facility Exit, Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	47	46
Net pre-tax restructuring costs (reversals)	7
Utilization and foreign exchange	6
Two Years Prior Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	57
Otis [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	5
Otis [Member] | Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	2
Expected Costs	5
Remaining Costs	3
Otis [Member] | Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	3	48
Expected Costs	58
Remaining Costs	7
UTC Climate, Controls & Security [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	23
UTC Climate, Controls & Security [Member] | Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	12
Expected Costs	21
Remaining Costs	9
UTC Climate, Controls & Security [Member] | Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	6	45
Expected Costs	85
Remaining Costs	34
Pratt & Whitney [Member] | Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	0	118
Expected Costs	118
Remaining Costs	0
UTC Aerospace Systems [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	23
UTC Aerospace Systems [Member] | Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	9
Expected Costs	15
Remaining Costs	6
UTC Aerospace Systems [Member] | Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	13	$ 31
Expected Costs	85
Remaining Costs	41
Eliminations and other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1
Eliminations and other [Member] | Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Net pre-tax restructuring costs (reversals)	(1)
Expected Costs	1
Remaining Costs	$ 0

Financial Instruments (Details)

Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Four Quarter Rolling Average of Notional Amount of Foreign Exchange Contracts Hedging Foreign Currency Transactions	$ 18,500		$ 18,300
Description of Net Investment Hedge Activity	we have issued approximately €2.95 billion of euro-denominated long-term debt and €500 million of outstanding euro-denominated commercial paper borrowings, which qualify as a net investment hedge against our investments in European businesses. As of March 31, 2017, the net investment hedge is deemed to be effective.
Derivatives designated as hedging instruments, Asset Derivatives	$ 22		15
Derivatives not designated as hedging instruments, Asset Derivatives	84		155
Derivatives designated as hedging instruments, Liability Derivatives	128		196
Derivatives not designated as hedging instruments, Liability Derivatives	113		$ 158
(Loss) gain recorded in Accumulated other comprehensive loss	64	$ 159
Loss reclassified from Accumulated other comprehensive loss into Product Sales (effective portion)	5	62
Foreign Currency Cash Flow Hedge Loss to be Reclassified During Next 12 Months	$ 25
Maximum Length of Time, Foreign Currency Cash Flow Hedge	5 years 7 months 20 days
Gain recognized in Other income, net	$ 12	15
(Payments) receipts from settlements of derivative contracts	$ 113	$ (42)

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Value Hierarchy Classification) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term borrowings	$ 1,200	$ 601
Portion at Other than Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	143	127
Customer financing notes receivable	450	437
Short-term borrowings	1,200	600
Long-term debt (excluding capitalized leases)	23,361	23,280
Long-term liabilities	433	457
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	134	121
Customer financing notes receivable	428	420
Short-term borrowings	1,200	600
Long-term debt (excluding capitalized leases)	25,154	25,110
Long-term liabilities	407	427
Fair Value Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	0
Customer financing notes receivable	0
Short-term borrowings	0
Long-term debt (excluding capitalized leases)	0
Long-term liabilities	0
Fair Value Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	134
Customer financing notes receivable	428
Short-term borrowings	1,074
Long-term debt (excluding capitalized leases)	24,975
Long-term liabilities	407
Fair Value Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	0
Customer financing notes receivable	0
Short-term borrowings	126
Long-term debt (excluding capitalized leases)	179
Long-term liabilities	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	316	987
Derivative Assets	106	170
Derivative Liabilities	241	354
Fair Value, Measurements, Recurring [Member] | Fair Value Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	316	987
Derivative Assets	2	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative Assets	104	170
Derivative Liabilities	241	354
Fair Value, Measurements, Recurring [Member] | Fair Value Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative Assets	0	0
Derivative Liabilities	$ 0	$ 0

Fair Value Measurements (Commer

Fair Value Measurements (Commercial Aerospace Financing Commitments) (Details) - USD ($) $ in Billions	Mar. 31, 2017	Dec. 31, 2016
Commercial Aerospace [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing and other contractual commitments	$ 14.2	$ 14.4

Long-Term Financing Receivabl54

Long-Term Financing Receivables (Reserve and Additional Information) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Long Term Receivables High Credit Risk Percentage	13.00%	13.00%
Financing Receivable Reserve For Credit Losses And Exposure	$ 17	$ 17

Long-Term Financing Receivabl55

Long-Term Financing Receivables(Class and Credit Risk Information) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	$ 1,301	$ 1,356
Long-term trade accounts receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	855	926
Notes And leases receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	$ 446	$ 430

Shareowners' Equity and Nonco56

Shareowners' Equity and Noncontrolling Interest (Summary of Changes in Shareowners' Equity and Noncontrolling Interest) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Shareowners' Equity, beginning of period	$ 27,579	$ 27,358
Noncontrolling interest, beginning of period	1,590	1,486
Total Equity, beginning of period	29,169	28,844
Net income, Shareowners' Equity	1,386	1,183
Net Income, Noncontrolling Interest	82	81
Net income, Total Equity	1,468	1,264
Total other comprehensive (loss) income, Shareowners' Equity	1	275
Total other comprehensive income (loss), Noncontrolling Interest	25	13
Total other comprehensive (loss) income	26	288
Total comprehensive income for the period, Shareowners' Equity	1,387	1,458
Total comprehensive income for the period, Noncontrolling Interest	107	94
Total comprehensive income for the period, Total Equity	1,494	1,552
Common Stock issued under employee plans	79	59
Common Stock repurchased	933	0
Dividends on Common Stock	505	509
Dividends on ESOP Common Stock	18	18
Dividends attributable to noncontrolling interest	5	51
Purchase of subsidiary shares from noncontrolling interest	1	1
Acquisition of noncontrolling interest	0	34
Other	8	7
Shareowners' Equity, end of period	27,594	28,353
Noncontrolling interest, end of period	1,678	1,550
Total Equity, end of period	29,272	29,903
Shareowners' Equity [Member]
Purchase of subsidiary shares from noncontrolling interest	0	0
Other	(5)	(5)
Noncontrolling Interest [Member]
Purchase of subsidiary shares from noncontrolling interest	1	1
Other	$ 13	$ 12

Shareowners' Equity and Nonco57

Shareowners' Equity and Noncontrolling Interest (Accelerated Stock Repurchase) (Details) - USD ($) shares in Millions, $ in Billions	3 Months Ended
	Sep. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
November 11, 2015 ASR [Member]
Accelerated Share Repurchases [Line Items]
ASR Aggregate Purchase Price			$ 6
Stock Repurchased During Period, Shares			51.9
January 19, 2016 settlement of ASR [Member]
Accelerated Share Repurchases [Line Items]
Stock Repurchased During Period, Shares		2.1
September 14 and 15, 2016 final settlement of ASR [Member]
Accelerated Share Repurchases [Line Items]
Stock Repurchased During Period, Shares	8

Shareowners' Equity and Nonco58

Shareowners' Equity and Noncontrolling Interest (Summary of Changes in AOCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (8,333)	$ (7,344)	$ (8,334)	$ (7,619)
Other comprehensive (loss) income before reclassifications, net - Foreign Currency Translation	146	39
Amounts reclassified, pretax - Foreign Currency Translation	0	(1)
Tax reclassified - Foreign Currency Translation	0	0
Other comprehensive (loss) income before reclassifications, net - Pension	0	17
Amounts reclassified, pretax - Pension	131	126
Tax reclassified - Pension	48	46
Other comprehensive (loss) income before reclassifications, net - AFS Securities	(21)	38
Amounts reclassified, pretax - AFS Securities	383	27
Tax reclassified - AFS Securities	147	12
Other comprehensive (loss) income before reclassifications, net - Unrealized Hedging (Losses) Gains	50	117
Amounts reclassified, pretax - Unrealized Hedging (Losses) Gains	(5)	(62)
Tax reclassified - Unrealized Hedging (Losses) Gains	(1)	(17)
Other comprehensive (loss) income before reclassifications, net	150	164
Amounts reclassified, pretax	247	(162)
Tax reclassified	98	(51)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,359)	(2,411)	(3,480)	(2,438)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(4,962)	(5,072)	(5,045)	(5,135)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	96	316	353	293
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(108)	(177)	$ (162)	$ (339)
Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss) income before reclassifications, net - Foreign Currency Translation	121	$ 26
Investments in Watsco, Inc.
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified, pretax - Unrealized Hedging (Losses) Gains	$ 380

Variable Interest Entities (Det

Variable Interest Entities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Total assets	$ 4,633	$ 4,056
Total liabilities	$ 4,546	4,058
IAE International Aero Engines AG
Variable Interest Entity [Line Items]
Variable Interest Entity, Methodology for Determining Whether Entity is Primary Beneficiary	Pratt & Whitney holds a 61% net interest in the IAE International Aero Engines AG (IAE) collaboration with MTU Aero Engines AG (MTU) and Japanese Aero Engines Corporation (JAEC) and a 49.5% ownership interest in IAE. IAE's business purpose is to coordinate the design, development, manufacturing and product support of the V2500 program through involvement with the collaborators.
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	49.50%
International Aero Engines LLC [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Methodology for Determining Whether Entity is Primary Beneficiary	Additionally, Pratt & Whitney, JAEC and MTU are participants in International Aero Engines, LLC (IAE LLC), whose business purpose is to coordinate the design, development, manufacturing and product support for the PW1100G-JM engine for the Airbus A320neo aircraft and the PW1400G-JM engine for the Irkut MC21 aircraft. Pratt & Whitney holds a 59% net interest in the collaboration and a 59% ownership interest in IAE LLC. IAE and IAE LLC retain limited equity with the primary economics of the programs passed to the participants.
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	59.00%
Other Current Assets [Member]
Variable Interest Entity [Line Items]
Total assets	$ 3,314	2,722
Other Current Liabilities [Member]
Variable Interest Entity [Line Items]
Total liabilities	2,883	2,422
Other Noncurrent Assets [Member]
Variable Interest Entity [Line Items]
Total assets	1,319	1,334
Other Noncurrent Liabilities [Member]
Variable Interest Entity [Line Items]
Total liabilities	$ 1,663	$ 1,636

Guarantees (Details)

Guarantees (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Product Warranty Liability [Line Items]
Balance as of January 1	$ 1,199	$ 1,212
Warranties and performance guarantees issued	78	76
Settlements made	56	62
Other	1	10
Balance as of March 31	$ 1,222	$ 1,236

Contingent Liabilities (Details

Contingent Liabilities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
U.S. Defense Contract Management Agency Claim Against Pratt & Whitney [Member]
Loss Contingencies [Line Items]
Loss Contingency Lawsuit Filing Date	December 24, 2013
Loss Contingency Allegations	As previously disclosed, in December 2013, a Divisional Administrative Contracting Officer of the United States Defense Contract Management Agency asserted a claim against Pratt & Whitney to recover overpayments of approximately $177 million plus interest (approximately $65 million through March 31, 2017). The claim is based on Pratt & Whitney's alleged noncompliance with cost accounting standards from January 1, 2005 to December 31, 2012, due to its method of determining the cost of collaborator parts used in the calculation of material overhead costs for government contracts.
Loss Contingency Damages Sought	$177 million
Loss Contingency Actions Taken By Defendant	On March 18, 2014, Pratt & Whitney filed an appeal to the Armed Services Board of Contract Appeals. Pratt & Whitney’s appeal is still pending and we continue to believe the government’s claim is without merit.
German Tax Office Against Otis [Member]
Loss Contingencies [Line Items]
Loss Contingency Lawsuit Filing Date	August 3, 2012
Loss Contingency Allegations	As previously disclosed, UTC has been involved in administrative review proceedings with the German Tax Office, which concern approximately €215 million (approximately $233 million) of tax benefits that we have claimed related to a 1998 reorganization of the corporate structure of Otis operations in Germany. Upon audit, these tax benefits were disallowed by the German Tax Office. UTC estimates interest associated with the aforementioned tax benefits is an additional approximately €118 million (approximately $128 million). On August 3, 2012, we filed suit in the local German Tax Court (Berlin-Brandenburg). In March 2016, the local German Tax Court dismissed our suit, and we have appealed this decision to the German Federal Tax Court (FTC).
Loss Contingency Damages Sought	€215 million (approximately $233 million)
Loss Contingency Actions Taken By Defendant	In 2015, UTC made tax and interest payments to German tax authorities of €275 million (approximately $300 million) in order to avoid additional interest accruals pending final resolution of this matter. In the meantime, we continue vigorously to litigate this matter.
Estimate of interest on tax benefit	€118 million (approximately $128 million)
Loss Contingency, Interest Paid	€275 million (approximately $300 million)
Asbestos Matter [Member]
Loss Contingencies [Line Items]
Loss Contingency Allegations	As previously disclosed, like many other industrial companies, we and our subsidiaries have been named as defendants in lawsuits alleging personal injury as a result of exposure to asbestos integrated into certain of our products or business premises. While we have never manufactured asbestos and no longer incorporate it in any currently-manufactured products, certain of our historical products, like those of many other manufacturers, have contained components incorporating asbestos. A substantial majority of these asbestos-related claims have been dismissed without payment or were 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 involved in asbestos related claims were not material individually or in the aggregate in any year.
Loss Contingency, Estimate of Possible Loss	$ 379
Loss Contingency, Receivable	$ 133
US Defense Contract Management Claim against Pratt and Whitney [Member]
Loss Contingencies [Line Items]
Estimate of interest on tax benefit	65
Asbestos Matter [Member]
Loss Contingencies [Line Items]
Loss Contingency, Management's Assessment and Process	Our estimated total liability to resolve all pending and unasserted potential future asbestos claims through 2059 is approximately $379 million and is principally recorded in Other long-term liabilities on our Condensed Consolidated Balance Sheet as of March 31, 2017. This amount is on a pre-tax basis, not discounted, and excludes the Company’s legal fees to defend the asbestos claims (which will continue to be expensed by the Company as they are incurred). In addition, the Company has an insurance recovery receivable for probable asbestos related recoveries of approximately $133 million, which is included primarily in Other assets on our Condensed Consolidated Balance Sheet as of March 31, 2017. The amounts recorded by UTC for asbestos-related liabilities and insurance recoveries are based on currently available information and assumptions that we believe are reasonable. Our actual liabilities or insurance recoveries could be higher or lower than those recorded if actual results vary significantly from the assumptions. Key variables in these assumptions include the number and type of new claims to be filed each year, the outcomes or resolution of such claims, the average cost of resolution of each new claim, the amount of insurance available, allocation methodologies, the contractual terms with each insurer with whom we have reached settlements, the resolution of coverage issues with other excess insurance carriers with whom we have not yet achieved settlements, and the solvency risk with respect to our insurance carriers. Other factors that may affect our future liability include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, legal rulings that may be made by state and federal courts, and the passage of state or federal legislation. At least annually, the Company will evaluate all of these factors and, with input from an outside actuarial expert, make any necessary adjustments to both our estimated asbestos liabilities and insurance recoveries.

Segment Financial Data (Details

Segment Financial Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Net Sales	$ 13,815	$ 13,357
Operating profit	$ 2,267	$ 1,945
Operating profit margin	16.40%	14.60%
Otis [Member]
Segment Reporting Information [Line Items]
Net Sales	$ 2,804	$ 2,715
Operating profit	$ 452	$ 466
Operating profit margin	16.10%	17.20%
UTC Climate, Controls & Security [Member]
Segment Reporting Information [Line Items]
Net Sales	$ 3,892	$ 3,728
Operating profit	$ 963	$ 606
Operating profit margin	24.70%	16.30%
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Net Sales	$ 3,758	$ 3,588
Operating profit	$ 393	$ 410
Operating profit margin	10.50%	11.40%
UTC Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Net Sales	$ 3,611	$ 3,505
Operating profit	$ 576	$ 538
Operating profit margin	16.00%	15.30%
Total Segments [Member]
Segment Reporting Information [Line Items]
Net Sales	$ 14,065	$ 13,536
Operating profit	$ 2,384	$ 2,020
Operating profit margin	16.90%	14.90%
Eliminations and other [Member]
Segment Reporting Information [Line Items]
Net Sales	$ (250)	$ (179)
Operating profit	(13)	16
General corporate expenses [Member]
Segment Reporting Information [Line Items]
Net Sales	0	0
Operating profit	$ (104)	$ (91)

Accounting Pronouncements (Deta

Accounting Pronouncements (Details)	3 Months Ended
	Mar. 31, 2017
ASU 2016-08 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue Gross versus Net) - clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements.
ASU 2016-10 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing - clarifies the guidance surrounding licensing arrangements and the identification of performance obligations.
ASU 2016-12 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	ASU 2016-12, Revenue from Contracts with Customers (Topic 606), Narrow-Scope Improvements and Practical Expedients - addresses implementation issues raised by stakeholders concerning collectability, noncash consideration, presentation of sales tax, and transition.
ASU 2016-20 [Member] [Domain]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	ASU 2016-20, Revenue from Contracts with Customers (Topic 606), Technical Corrections and Improvements - addresses loan guarantee fees, impairment testing of contract costs, provisions for losses on certain contracts, and various disclosures.
ASU 2015-14 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date - delays the effective date of ASU 2014-09 by one year.
ASU 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. This ASU modifies how entities measure equity investments and present changes in the fair value of financial liabilities. Upon adoption, investments that do not result in consolidation and are not accounted for under the equity method generally must be carried at fair value, with changes in fair value recognized in net income. As discussed in Note 12, we have approximately $96 million of unrealized gains on these securities recorded in Accumulated other comprehensive loss in our Condensed Consolidated Balance Sheet as of March 31, 2017. To the extent currently unrealized gains or losses on these investments are not realized through sale or other actions prior to the date of adoption, these amounts would be recorded directly to retained earnings upon adoption. The provisions of this ASU are effective for years beginning after December 15, 2017.
ASU 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In February 2016, the FASB issued ASU 2016- 02, Leases (Topic 842). The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the Condensed Consolidated Statement of Operations. In addition, this standard requires a lessor to classify leases as either sales-type, finance or operating. A lease will be treated as a sale if it transfers all of the risks and rewards, as well as control of the underlying asset, to the lessee. If risks and rewards are conveyed without the transfer of control, the lease is treated as financing. If the lessor doesn’t convey risks and rewards or control, the lease is treated as operating. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for lessees for capital and operating leases and lessors for sales-type, direct financing, and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. While we are still evaluating the impact of our pending adoption of the new standard on our consolidated financial statements, we expect that upon adoption we will recognize ROU assets and lease liabilities and that the amounts could be material. We do not expect the ASU to have a material impact on our cash flows or results of operations.
ASU 2016-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In June 2016, the FASB issued Accounting Standards Update (ASU) 2016-13, Financial Instruments - Credit Losses (Topic 328): Measurement of Credit Losses on Financial Instruments. This ASU requires that certain financial assets, including those measured at amortized cost basis, be presented at the net amount expected to be collected, utilizing an impairment model known as the current expected credit loss model. In addition, available-for-sale debt securities will no longer use the concept of "other than temporary" when considering credit losses. Under this ASU, entities must use an allowance approach for credit losses on available-for-sale debt securities, and the allowance must be limited to the amount at which a security's fair value is below the amortized cost of the asset. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted. We do not expect this ASU to have a significant impact on our financial statements or disclosures.
ASU 2016-16 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. This ASU requires the income tax consequences of an intra-entity transfer of an asset, other than inventory, to be recognized when the transfer occurs. Two common examples of assets included in the scope of this update are intellectual property and property, plant, and equipment. The provisions of this ASU are effective for years beginning after December 15, 2017, with early adoption permitted. We are currently evaluating the impact of this ASU.
ASU 2017-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This ASU provides a new framework that will assist in the evaluation of whether business combination transactions should be accounted as acquisition of a business or a group of assets, as well as specifying the minimum required inputs and processes necessary to be a business. The provisions of this ASU are effective for years beginning after December 15, 2017, with early adoption permitted. We are currently evaluating the impact of this ASU.
ASU 2017-04 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU eliminates Step 2 of the current goodwill impairment test, which requires a hypothetical purchase price allocation to measure goodwill impairment. A goodwill impairment loss will instead be measured at the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the recorded amount of goodwill. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted for any impairment test performed on testing dates after January 1, 2017. We do not expect this ASU to have a significant impact on our financial statements or disclosures.
ASU 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In March 2017, the FASB issued ASU 2017-07, Compensation—Retirement Benefits (Topic 715), Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This ASU requires an employer to report the service cost component of net periodic pension benefit cost in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period, with other cost components presented separately from the service cost component and outside of income from operations. This ASU also allows only the service cost component of net periodic pension benefit cost to be eligible for capitalization when applicable. The provisions of this ASU are effective for years beginning after December 15, 2017. Provisions related to presentation of the service cost components versus other cost components must be applied retrospectively, while provisions related to service cost component eligibility for capitalization must be applied prospectively. We are currently evaluating the impact of this ASU.This ASU impacts only the presentation of net periodic pension cost/benefit and therefore does not have a significant impact on the financial statements.