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Commercial Aerospace Industry Assets and Commitments (Tables) | 12 Months Ended
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Dec. 31, 2019
Other Commitments [Abstract] |
Commercial Aerospace Industry Assets and Commitments [Table Text Block] | The following is the expected maturity of commercial aerospace industry assets and commitments as of December 31, 2019:
(dollars in millions) | Committed |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 |  | Thereafter
Notes and leases receivable | $ | 308 |  |  | $ | 30 |  |  | $ | 23 |  |  | $ | 14 |  |  | $ | 22 |  |  | $ | 38 |  |  | $ | 181 |
Commercial aerospace financing commitments | $ | 3,937 |  |  | $ | 911 |  |  | $ | 1,119 |  |  | $ | 974 |  |  | $ | 819 |  |  | $ | 44 |  |  | $ | 70 |
Other commercial aerospace commitments | 11,055 |  |  | 702 |  |  | 736 |  |  | 717 |  |  | 668 |  |  | 627 |  |  | 7,605 |
Collaboration partners' share | (5,284) |  |  | (508) |  |  | (623) |  |  | (571) |  |  | (538) |  |  | (193) |  |  | (2,851) |
Total commercial commitments | $ | 9,708 |  |  | $ | 1,105 |  |  | $ | 1,232 |  |  | $ | 1,120 |  |  | $ | 949 |  |  | $ | 478 |  |  | $ | 4,824 |

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