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Restructuring and Other Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | $ 112 |
Cost of Sales [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 56 |
Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 56 |
Otis [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 25 |
Carrier [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 33 |
Pratt & Whitney [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 14 |
Collins Aerospace Systems [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 39 |
Eliminations and other [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 1 |
Current Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 73 |
Utilization, foreign exchange and other costs | (5) |
Restructuring Reserve | 68 |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 104 |
Cost Incurred | (73) |
Remaining Costs | 31 |
Current Year Actions [Member] | Severance [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 68 |
Utilization, foreign exchange and other costs | (15) |
Restructuring Reserve | 53 |
Current Year Actions [Member] | Facility Exit, Lease Termination and Other Costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 5 |
Utilization, foreign exchange and other costs | 10 |
Restructuring Reserve | 15 |
Current Year Actions [Member] | Cost of Sales [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 28 |
Current Year Actions [Member] | Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 45 |
Current Year Actions [Member] | Otis [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 27 |
Cost Incurred | (19) |
Remaining Costs | 8 |
Current Year Actions [Member] | Carrier [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 40 |
Cost Incurred | (25) |
Remaining Costs | 15 |
Current Year Actions [Member] | Pratt & Whitney [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 14 |
Cost Incurred | (14) |
Remaining Costs | 0 |
Current Year Actions [Member] | Collins Aerospace Systems [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 22 |
Cost Incurred | (14) |
Remaining Costs | 8 |
Current Year Actions [Member] | Eliminations and other [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 1 |
Cost Incurred | (1) |
Remaining Costs | 0 |
Prior Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 23 |
Utilization, foreign exchange and other costs | (90) |
Restructuring Reserve | 71 | $ 138
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 286 |
Cost Incurred | (23) | (207)
Remaining Costs | 56 |
Prior Year Actions [Member] | Severance [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 21 |
Utilization, foreign exchange and other costs | (74) |
Restructuring Reserve | 62 | 115
Prior Year Actions [Member] | Facility Exit, Lease Termination and Other Costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 2 |
Utilization, foreign exchange and other costs | (16) |
Restructuring Reserve | 9 | 23
Prior Year Actions [Member] | Cost of Sales [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 16 |
Prior Year Actions [Member] | Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 7 |
Prior Year Actions [Member] | Otis [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 58 |
Cost Incurred | (5) | (48)
Remaining Costs | 5 |
Prior Year Actions [Member] | Carrier [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 107 |
Cost Incurred | (7) | (64)
Remaining Costs | 36 |
Prior Year Actions [Member] | Pratt & Whitney [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 3 |
Cost Incurred | 0 | (3)
Remaining Costs | 0 |
Prior Year Actions [Member] | Collins Aerospace Systems [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 113 |
Cost Incurred | (11) | (87)
Remaining Costs | 15 |
Prior Year Actions [Member] | Eliminations and other [Member] |  |
Restructuring and Related Cost, Expected Cost [Abstract] |  |
Expected Costs | 5 |
Cost Incurred | 0 | $ (5)
Remaining Costs | 0 |
Two Years Prior Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs | 16 |
Restructuring Reserve | $ 103 |

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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