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Accounts Receivable | 12 Months Ended
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Dec. 31, 2019
Receivables [Abstract] |
Accounts Receivable | Accounts Receivable The components of our accounts receivable, net of allowance for doubtful accounts, are as follows:
| December 31, 2019
Dollars in millions | Unbilled |  | Trade & Other |  | Total
Government Solutions | $ | 184 |  |  | $ | 381 |  |  | $ | 565 |
Technology Solutions | 6 |  |  | 56 |  |  | 62 |
Energy Solutions | 118 |  |  | 192 |  |  | 310 |
Subtotal | 308 |  |  | 629 |  |  | 937 |
Non-strategic Business | — |  |  | 1 |  |  | 1 |
Total | $ | 308 |  |  | $ | 630 |  |  | $ | 938 |
| December 31, 2018
Dollars in millions | Unbilled |  | Trade & Other |  | Total
Government Solutions | $ | 266 |  |  | $ | 334 |  |  | $ | 600 |
Technology Solutions | 11 |  |  | 62 |  |  | 73 |
Energy Solutions | 69 |  |  | 185 |  |  | 254 |
Subtotal | 346 |  |  | 581 |  |  | 927 |
Non-strategic Business | — |  |  | — |  |  | — |
Total | $ | 346 |  |  | $ | 581 |  |  | $ | 927 |

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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- References No definition available. + Details
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