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Restructuring and Other Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2017 | Mar. 31, 2017 | Jun. 30, 2017 | Dec. 31, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | $ 112 |
Cost of Sales [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 50 |
Selling, General and Administrative Expenses [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 62 |
Current Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 63 |
Restructuring Reserve | $ 43 | $ 16 | 43 |
Net pre-tax restructuring costs (reversals) | 39 | 24 | 63 |
Utilization and foreign exchange | 12 |  | 20 |
Expected Costs | 128 |  | 128 |
Remaining Costs | 65 |  | 65 |
Current Year Actions [Member] | Cost of Sales [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 21 |
Current Year Actions [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 42 |
Current Year Actions [Member] | Severance [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 43 | 16 | 43 |
Net pre-tax restructuring costs (reversals) | 36 |  | 57 |
Utilization and foreign exchange | 9 |  | 14 |
Current Year Actions [Member] | Facility Exit, Lease Termination and Other Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 0 | 0 | 0 |
Net pre-tax restructuring costs (reversals) | 3 |  | 6 |
Utilization and foreign exchange | 3 |  | 6 |
Prior Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 40 |
Restructuring Reserve | 97 | 103 | 97 | $ 109
Net pre-tax restructuring costs (reversals) | 18 | 22 | 40 | 242
Utilization and foreign exchange | 24 |  | 52 |
Expected Costs | 341 |  | 341 |
Remaining Costs | 59 |  | 59 |
Prior Year Actions [Member] | Cost of Sales [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 16 |
Prior Year Actions [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 24 |
Prior Year Actions [Member] | Severance [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 49 | 56 | 49 | 63
Net pre-tax restructuring costs (reversals) | 11 |  | 26 |
Utilization and foreign exchange | 18 |  | 40 |
Prior Year Actions [Member] | Facility Exit, Lease Termination and Other Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 48 | 47 | 48 | 46
Net pre-tax restructuring costs (reversals) | 7 |  | 14 |
Utilization and foreign exchange | 6 |  | 12 |
Two Years Prior Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 9 |
Restructuring Reserve | 69 |  | 69 |
Otis [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 17 |
Otis [Member] | Current Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 12 | 2 |  |
Expected Costs | 29 |  | 29 |
Remaining Costs | 15 |  | 15 |
Otis [Member] | Prior Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | (1) | 3 |  | 48
Expected Costs | 55 |  | 55 |
Remaining Costs | 5 |  | 5 |
UTC Climate, Controls & Security [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 41 |
UTC Climate, Controls & Security [Member] | Current Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 11 | 12 |  |
Expected Costs | 37 |  | 37 |
Remaining Costs | 14 |  | 14 |
UTC Climate, Controls & Security [Member] | Prior Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 7 | 6 |  | 45
Expected Costs | 83 |  | 83 |
Remaining Costs | 25 |  | 25 |
Pratt & Whitney [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 6 |
Pratt & Whitney [Member] | Current Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 6 | 0 |  |
Expected Costs | 6 |  | 6 |
Remaining Costs | 0 |  | 0 |
Pratt & Whitney [Member] | Prior Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 0 | 0 |  | 118
Expected Costs | 118 |  | 118 |
Remaining Costs | 0 |  | 0 |
UTC Aerospace Systems [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  | 47 |
UTC Aerospace Systems [Member] | Current Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 10 | 9 |  |
Expected Costs | 55 |  | 55 |
Remaining Costs | 36 |  | 36 |
UTC Aerospace Systems [Member] | Prior Year Actions [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Net pre-tax restructuring costs (reversals) | 12 | 13 |  | $ 31
Expected Costs | 85 |  | 85 |
Remaining Costs | 29 |  | 29 |
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 |  | 1 |
Remaining Costs | $ 0 |  | $ 0 |

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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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