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Restructuring and Other Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | $ 245 |
Cost of Sales [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 177 |
Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 64 |
Non-service pension (benefit) [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 4 |
Current Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 162 |
Utilization and foreign exchange | (104) |
Restructuring Reserve | 58 |
Expected Costs | 255 |
Restructuring cost incurred | (162) |
Remaining Costs | 93 |
Current Year Actions [Member] | Cost of Sales [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 122 |
Current Year Actions [Member] | Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 40 |
Current Year Actions [Member] | Severance [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 151 |
Utilization and foreign exchange | (104) |
Restructuring Reserve | 47 |
Current Year Actions [Member] | Facility Exit, Lease Termination and Other Costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 11 |
Utilization and foreign exchange | 0 |
Restructuring Reserve | 11 |
Prior Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 23 |
Utilization and foreign exchange | (98) |
Restructuring Reserve | 7 | $ 82
Expected Costs | 121 |
Restructuring cost incurred | (23) | (95)
Remaining Costs | 3 |
Prior Year Actions [Member] | Cost of Sales [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 12 |
Prior Year Actions [Member] | Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 11 |
Prior Year Actions [Member] | Severance [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 22 |
Utilization and foreign exchange | (76) |
Restructuring Reserve | 6 | 60
Prior Year Actions [Member] | Facility Exit, Lease Termination and Other Costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 1 |
Utilization and foreign exchange | (22) |
Restructuring Reserve | 1 | 22
Two Years Prior Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 60 |
Restructuring Reserve | 59 |
Pratt and Whitney [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 133 |
Pratt and Whitney [Member] | Current Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Costs | 133 |
Restructuring cost incurred | (133) |
Remaining Costs | 0 |
Pratt and Whitney [Member] | Prior Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Costs | 3 |
Restructuring cost incurred | 0 | (3)
Remaining Costs | 0 |
Collins Aerospace Systems [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 106 |
Collins Aerospace Systems [Member] | Current Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Costs | 120 |
Restructuring cost incurred | (27) |
Remaining Costs | 93 |
Collins Aerospace Systems [Member] | Prior Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Costs | 111 |
Restructuring cost incurred | (23) | (87)
Remaining Costs | 1 |
Eliminations and other [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Net pre-tax restructuring costs (benefit) | 6 |
Eliminations and other [Member] | Current Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Costs | 2 |
Restructuring cost incurred | (2) |
Remaining Costs | 0 |
Eliminations and other [Member] | Prior Year Actions [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Costs | 7 |
Restructuring cost incurred | 0 | $ (5)
Remaining Costs | $ 2 |

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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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