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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | Revenue by business unit and reportable segment was as follows:
|  |  | Year Ended December 31, |  |  |  |  |  |
Dollars in millions |  |  |  |  | 2021 |  | 2020 |  | 2019 |  |  |  |  |  |
Government Solutions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Science & Space |  |  |  |  | $ | 1,018 |  |  | $ | 967 |  |  | $ | 863 |  |  |  |  |  |  |
Defense & Intel |  |  |  |  | 1,475 |  |  | 959 |  |  | 782 |  |  |  |  |  |  |
Readiness & Sustainment |  |  |  |  | 2,644 |  |  | 1,153 |  |  | 1,400 |  |  |  |  |  |  |
International |  |  |  |  | 1,012 |  |  | 976 |  |  | 997 |  |  |  |  |  |  |
Total Government Solutions |  |  |  |  | 6,149 |  |  | 4,055 |  |  | 4,042 |  |  |  |  |  |  |
Sustainable Technology Solutions |  |  |  |  | 1,190 |  |  | 1,712 |  |  | 1,597 |  |  |  |  |  |  |
Total revenue |  |  |  |  | $ | 7,339 |  |  | $ | 5,767 |  |  | $ | 5,639 |  |  |  |  |  |  |
Revenue by geographic destination was as follows:
| Year Ended December 31, 2021
Dollars in millions | Government Solutions |  | Sustainable Technology Solutions |  |  |  |  |  | Total
United States | $ | 4,493 |  |  | $ | 430 |  |  |  |  |  |  | $ | 4,923 |
Middle East | 393 |  |  | 197 |  |  |  |  |  |  | 590 |
Europe | 816 |  |  | 223 |  |  |  |  |  |  | 1,039 |
Australia | 351 |  |  | 16 |  |  |  |  |  |  | 367 |
Canada | 1 |  |  | 2 |  |  |  |  |  |  | 3 |
Africa | 87 |  |  | 92 |  |  |  |  |  |  | 179 |
Asia | 7 |  |  | 192 |  |  |  |  |  |  | 199 |
Other countries | 1 |  |  | 38 |  |  |  |  |  |  | 39 |
Total revenue | $ | 6,149 |  |  | $ | 1,190 |  |  |  |  |  |  | $ | 7,339 |
| Year Ended December 31, 2020
Dollars in millions | Government Solutions |  | Sustainable Technology Solutions |  |  |  |  |  | Total
United States | $ | 2,280 |  |  | $ | 751 |  |  |  |  |  |  | $ | 3,031 |
Middle East | 622 |  | (a) (b) | 235 |  |  |  |  |  |  | 857 |
Europe | 743 |  |  | 218 |  |  |  |  |  |  | 961 |
Australia | 272 |  |  | 52 |  |  |  |  |  |  | 324 |
Canada | 1 |  |  | 45 |  |  |  |  |  |  | 46 |
Africa | 81 |  |  | 71 |  |  |  |  |  |  | 152 |
Asia | — |  |  | 203 |  |  |  |  |  |  | 203 |
Other countries | 56 |  |  | 137 |  |  |  |  |  |  | 193 |
Total revenue | $ | 4,055 |  |  | $ | 1,712 |  |  |  |  |  |  | $ | 5,767 |
| Year Ended December 31, 2019
Dollars in millions | Government Solutions |  | Sustainable Technology Solutions |  |  |  |  |  | Total
United States | $ | 2,110 |  |  | $ | 595 |  |  |  |  |  |  | $ | 2,705 |
Middle East | 795 |  | (a) (b) | 232 |  |  |  |  |  |  | 1,027 |
Europe | 796 |  |  | 262 |  |  |  |  |  |  | 1,058 |
Australia | 209 |  |  | 79 |  |  |  |  |  |  | 288 |
Canada | 1 |  |  | 38 |  |  |  |  |  |  | 39 |
Africa | 76 |  |  | 121 |  |  |  |  |  |  | 197 |
Asia | — |  |  | 214 |  |  |  |  |  |  | 214 |
Other countries | 55 |  |  | 56 |  |  |  |  |  |  | 111 |
Total revenue | $ | 4,042 |  |  | $ | 1,597 |  |  |  |  |  |  | $ | 5,639 |
Revenue by contract type was as follows:
| Year Ended December 31, 2021
Dollars in millions | Government Solutions |  | Sustainable Technology Solutions |  | Total
Cost Reimbursable | $ | 4,175 |  |  | $ | — |  |  | $ | 4,175 |
Time-and-Materials | 903 |  |  | 739 |  |  | $ | 1,642 |
Fixed Price | 1,071 |  |  | 451 |  |  | $ | 1,522 |
Total revenue | $ | 6,149 |  |  | $ | 1,190 |  |  | $ | 7,339 |
| Year Ended December 31, 2020
Dollars in millions | Government Solutions |  | Sustainable Technology Solutions |  | Total
Cost Reimbursable | $ | 2,409 |  |  | $ | — |  |  | $ | 2,409 |
Time-and-Materials | 608 |  |  | 1,215 |  |  | 1,823 |
Fixed Price | 1,038 |  |  | 497 |  |  | 1,535 |
Total revenue | $ | 4,055 |  |  | $ | 1,712 |  |  | $ | 5,767 |
| Year Ended December 31, 2019
Dollars in millions | Government Solutions |  | Sustainable Technology Solutions |  | Total
Cost Reimbursable | $ | 2,501 |  |  | $ | — |  |  | $ | 2,501 |
Time-and-Materials | 452 |  |  | 1,077 |  |  | 1,529 |
Fixed Price | 1,089 |  |  | 520 |  |  | 1,609 |
Total revenue | $ | 4,042 |  |  | $ | 1,597 |  |  | $ | 5,639 |
Schedule of Accounts Receivable |
| December 31,
Dollars in millions | 2021 |  | 2020
Unbilled | $ | 698 |  |  | $ | 476 |
Trade & other | 713 |  |  | 423 |
Accounts receivable, net | $ | 1,411 |  |  | $ | 899 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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