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Revenue Recognition Contract Asset & Liability (Tables) | 3 Months Ended
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Mar. 31, 2020
Contract Asset and Liability [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | Total contract assets and contract liabilities as of March 31, 2020 and December 31, 2019 are as follows:
(dollars in millions) | March 31, 2020 |  | December 31, 2019
Contract assets, current | $ | 4,549 |  |  | $ | 4,184 |
Contract assets, noncurrent (included within Other assets) | 1,277 |  |  | 1,338 |
Total contract assets | 5,826 |  |  | 5,522 |
Contract liabilities, current | (6,384) |  |  | (6,180) |
Contract liabilities, noncurrent | (5,554) |  |  | (5,732) |
Total contract liabilities | (11,938) |  |  | (11,912) |
Net contract liabilities | $ | (6,112) |  |  | $ | (6,390) |

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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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