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Contract Assets and Contract Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2019
Revenue from Contract with Customer [Abstract] |
Schedule of Contract Assets and Liabilities | Our contract assets by business segment are as follows:
| December 31,
Dollars in millions | 2019 |  | 2018
Government Solutions | $ | 111 |  |  | $ | 123 |
Technology Solutions | 36 |  |  | 19 |
Energy Solutions | 68 |  |  | 43 |
Subtotal | 215 |  |  | 185 |
Non-strategic Business | — |  |  | — |
Total | $ | 215 |  |  | $ | 185 |
Our contract liabilities balances by business segment are as follows:
| December 31,
Dollars in millions | 2019 |  | 2018
Government Solutions | $ | 261 |  |  | $ | 261 |
Technology Solutions | 73 |  |  | 98 |
Energy Solutions | 147 |  |  | 100 |
Subtotal | 481 |  |  | 459 |
Non-strategic Business | 3 |  |  | 4 |
Total | $ | 484 |  |  | $ | 463 |

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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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