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Revenue Recognition Contract Asset & Liability (Tables) | 9 Months Ended
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Sep. 30, 2020
Contract Asset and Liability [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | Total contract assets and contract liabilities as of September 30, 2020 and December 31, 2019 are as follows:
(dollars in millions) | September 30, 2020 |  | December 31, 2019
Contract assets | $ | 9,617 |  |  | $ | 4,462 |
Contract liabilities, current | (12,208) |  |  | (9,014) |
Contract liabilities, non-current (included within Other long-term liabilities) | (120) |  |  | — |
Net contract liabilities | $ | (2,711) |  |  | $ | (4,552) |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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- Definition Contract Asset and Liability [Abstract] + References No definition available. + Details
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