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Segment Disclosures - Segment Revenue Per Service (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 01, 2017 | Oct. 02, 2016 | Jul. 03, 2016 | Apr. 03, 2016 | Jan. 03, 2016 | [1] | Sep. 27, 2015 | Jun. 28, 2015 | Mar. 29, 2015 | Jan. 01, 2017 | Jan. 03, 2016 | Dec. 28, 2014
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service | $ 1,304.4 | $ 1,247.8 | $ 1,375.5 | $ 1,349.1 | $ 1,461.6 | $ 1,351.0 | $ 1,385.0 | $ 1,320.6 | $ 5,276.8 | $ 5,518.2 | [2] | $ 5,562.7
Reporting Segments | Total Americas Commercial and PT |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 3,495.1 | 3,576.2 |  | 3,565.6
Reporting Segments | Total EMEA Commercial and PT |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 938.1 | 945.0 |  | 1,085.0
Reporting Segments | Total APAC Commercial and PT |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 189.0 | 387.7 |  | 392.2
Reporting Segments | Americas Commercial |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 2,548.0 | 2,604.3 |  | 2,609.6
Reporting Segments | Americas PT |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 947.1 | 971.9 |  | 956.0
Reporting Segments | EMEA Commercial |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 769.3 | 773.5 |  | 894.7
Reporting Segments | EMEA PT |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 168.8 | 171.5 |  | 190.3
Reporting Segments | APAC Commercial |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 170.7 | 347.2 |  | 351.8
Reporting Segments | APAC PT |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 18.3 | 40.5 |  | 40.4
Reporting Segments | OCG |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | 706.4 | 673.8 |  | 586.8
Less: Intersegment revenue |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Services: |  |  |  |  |  |  |  |  |  |  |  |
Segment revenue for service |  |  |  |  |  |  |  |  | $ (51.8) | $ (64.5) |  | $ (66.9)
[1] | Fourth Quarter 2015 included 14 weeks.
[2] | Fiscal year included 53 weeks.

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