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U.S. Government Matters (Details) $ in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 09, 2019 USD ($) | Jan. 31, 2014 subcontractor defendent | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Mar. 31, 2011 USD ($)
United States Government Contract Work [Line Items] |  |  |  |  |  |
Cost of revenues |  |  | $ 4,986 | $ 4,329 | $ 3,732 |
Government Services |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Billed costs |  |  | 80 |  |  |
Cost of revenues |  |  | 52 |  |  |
Government contract receivable |  |  | 28 | 73 |  |
Total amount of payments withheld from subcontractors as result of disapproved costs related to Dcaa form 1 issued to enterprise |  |  | 26 |  |  |
Reserve for Potentially Disallowable Costs Incurred under Government Contracts |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Provision for doubtful accounts |  |  | 41 | 41 |  |
Reserve for Potentially Disallowable Costs Incurred under Government Contracts | Contract Liabilities |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Provision for doubtful accounts |  |  | 26 | 26 |  |
Reserve for Potentially Disallowable Costs Incurred under Government Contracts | Other Liabilities |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Provision for doubtful accounts |  |  | 15 | $ 15 |  |
Private Security |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Billed costs |  |  | 57 |  |  |
Government contract receivable |  |  | 44 |  |  |
Awarded interest, revenue recognized | $ 13 |  |  |  |  |
First Kuwaiti Trading Company Arbitration |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Damages awarded, value |  |  | 17 |  |  |
Accounts payable |  |  | 32 |  |  |
Payments on contract work |  |  | 19 |  |  |
First Kuwaiti Trading Company Arbitration | Other Current Liabilities | Pay-When-Paid Terms |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Payments on contract work |  |  | $ 30 |  |  |
Howard qui tam |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Loss contingency, estimate of possible loss |  |  |  |  |  | $ 628
DOJFCA |  |  |  |  |  |
United States Government Contract Work [Line Items] |  |  |  |  |  |
Number of subcontractors | subcontractor |  | 2 |  |  |  |
Loss contingency, number of defendants | defendent |  | 3 |  |  |  |

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- Definition Pertaining to the individual matter in discussion, amount of payments that the enterprise withheld from its subcontractors under the payment terms of those contracts in relation to the government withhold of payments to the enterprise associated with the DCAA's issuance of Form 1 - Notice of Contract Costs Suspended and/or Disapproved. + References No definition available. + Details
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