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Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2018
Accounting Policies [Abstract] |
Disaggregation of Revenue | The following table provides information about disaggregated revenue by major service line, the timing of revenue recognition and a reconciliation of the disaggregated revenue by reportable segments. Refer to Note 2 – Segment Reporting for additional information on the Company's reportable segments.
(in millions) |  | Year Ended December 31, 2018
Commercial Industries: |  |
Omni-channel communications |  | $ | 852 |
Human resource services |  | 754 |
Industry services |  | 941 |
Total Commercial Industries |  | 2,547 |
Government Services |  | 1,351 |
Transportation |  | 729 |
Other: |  |
Divestitures |  | 752 |
Education |  | 14 |
Total Other |  | 766 |
Total Consolidated Revenue |  | $ | 5,393 |
Timing of Revenue Recognition: |  |
Point in time |  | $ | 142 |
Over time |  | 5,251 |
Total Revenue |  | $ | 5,393 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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