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Commercial Aerospace Industry Assets and Commitments (Tables) | 12 Months Ended
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Dec. 31, 2017
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, 2017:
(dollars in millions) | Committed |  | 2018 |  |  | 2019 |  |  | 2020 |  |  | 2021 |  |  | 2022 |  |  | Thereafter |
Notes and leases receivable | $ | 652 |  |  | $ | 211 |  |  | $ | 56 |  |  | $ | 79 |  |  | $ | 38 |  |  | $ | 35 |  |  | $ | 233 |
Commercial aerospace financing commitments | $ | 4,012 |  |  | $ | 371 |  |  | $ | 678 |  |  | $ | 636 |  |  | $ | 891 |  |  | $ | 783 |  |  | $ | 653 |
Other commercial aerospace commitments | 11,270 |  |  | 910 |  |  | 840 |  |  | 684 |  |  | 735 |  |  | 645 |  |  | 7,456 |
Collaboration partners' share | (5,109 | ) |  | (374 | ) |  | (402 | ) |  | (396 | ) |  | (525 | ) |  | (491 | ) |  | (2,921 | )
Total commercial commitments | $ | 10,173 |  |  | $ | 907 |  |  | $ | 1,116 |  |  | $ | 924 |  |  | $ | 1,101 |  |  | $ | 937 |  |  | $ | 5,188 |

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- Definition This element may be used to capture the complete disclosure pertaining to an entity's commercial aerospace industry assets and commitments. + References No definition available. + Details
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