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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting, Measurement Disclosures [Abstract] |
Revenue and Gross Profit from Reportable Segments | Revenue and gross profit for the Company’s operating and reportable segments are as follows (in millions):
|  | PSG |  | ASG |  | ISG |  | Total
For year ended December 31, 2020: |  |  |  |  |  |  |  |
Revenue from external customers |  | $ | 2,606.1 |  |  | $ | 1,910.4 |  |  | $ | 738.5 |  |  | $ | 5,255.0 |
Segment gross profit |  | 801.7 |  |  | 730.5 |  |  | 237.7 |  |  | 1,769.9 |
For year ended December 31, 2019: |  |  |  |  |  |  |  |
Revenue from external customers |  | $ | 2,788.3 |  |  | $ | 1,972.3 |  |  | $ | 757.3 |  |  | $ | 5,517.9 |
Segment gross profit |  | 976.0 |  |  | 794.8 |  |  | 275.4 |  |  | 2,046.2 |
For year ended December 31, 2018: |  |  |  |  |  |  |  |
Revenue from external customers |  | $ | 3,038.2 |  |  | $ | 2,071.2 |  |  | $ | 768.9 |  |  | $ | 5,878.3 |
Segment gross profit |  | 1,110.1 |  |  | 878.3 |  |  | 317.1 |  |  | 2,305.5 |
Reconciliation of Operating Profit (Loss) from Segments to Consolidated | Gross profit is exclusive of the amortization of acquisition-related intangible assets. Depreciation expense is included in segment gross profit. Reconciliations of segment gross profit to consolidated gross profit are as follows (in millions):
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Gross profit for reportable segments | $ | 1,769.9 |  |  | $ | 2,046.2 |  |  | $ | 2,305.5 |
Less: unallocated manufacturing costs | (54.1) |  |  | (72.6) |  |  | (66.8) |
Consolidated gross profit | $ | 1,715.8 |  |  | $ | 1,973.6 |  |  | $ | 2,238.7 |
Disaggregation of Revenue | Revenue for the Company's operating and reportable segments disaggregated into geographic locations based on sales billed from the respective country and sales channels are as follows (in millions):
| Year Ended December 31, 2020
| PSG |  | ASG |  | ISG |  | Total
Geographic Location |  |  |  |  |  |  |
Singapore | $ | 978.0 |  |  | $ | 695.0 |  |  | $ | 126.5 |  |  | $ | 1,799.5 |
Hong Kong | 723.2 |  |  | 410.6 |  |  | 177.8 |  |  | 1,311.6 |
United Kingdom | 395.7 |  |  | 264.5 |  |  | 145.7 |  |  | 805.9 |
United States | 282.8 |  |  | 282.0 |  |  | 163.8 |  |  | 728.6 |
Other | 226.4 |  |  | 258.3 |  |  | 124.7 |  |  | 609.4 |
Total | $ | 2,606.1 |  |  | $ | 1,910.4 |  |  | $ | 738.5 |  |  | $ | 5,255.0 |
Sales Channel |  |  |  |  |  |  |
Distributors | $ | 1,776.4 |  |  | $ | 986.4 |  |  | $ | 406.8 |  |  | $ | 3,169.6 |
OEM | 673.6 |  |  | 794.6 |  |  | 297.5 |  |  | 1,765.7 |
Electronic Manufacturing Service Providers | 156.1 |  |  | 129.4 |  |  | 34.2 |  |  | 319.7 |
Total | $ | 2,606.1 |  |  | $ | 1,910.4 |  |  | $ | 738.5 |  |  | $ | 5,255.0 |
| Year Ended December 31, 2019
| PSG |  | ASG |  | ISG |  | Total
Geographic Location |  |  |  |  |  |  |
Singapore | $ | 864.7 |  |  | $ | 679.7 |  |  | $ | 168.7 |  |  | $ | 1,713.1 |
Hong Kong | 843.5 |  |  | 436.8 |  |  | 137.0 |  |  | 1,417.3 |
United Kingdom | 467.1 |  |  | 303.5 |  |  | 151.0 |  |  | 921.6 |
United States | 356.3 |  |  | 332.6 |  |  | 121.4 |  |  | 810.3 |
Other | 256.7 |  |  | 219.7 |  |  | 179.2 |  |  | 655.6 |
Total | $ | 2,788.3 |  |  | $ | 1,972.3 |  |  | $ | 757.3 |  |  | $ | 5,517.9 |
Sales Channel |  |  |  |  |  |  |
Distributors | $ | 1,740.6 |  |  | $ | 971.5 |  |  | $ | 461.0 |  |  | $ | 3,173.1 |
OEM | 857.5 |  |  | 860.3 |  |  | 258.8 |  |  | 1,976.6 |
Electronic Manufacturing Service Providers | 190.2 |  |  | 140.5 |  |  | 37.5 |  |  | 368.2 |
Total | $ | 2,788.3 |  |  | $ | 1,972.3 |  |  | $ | 757.3 |  |  | $ | 5,517.9 |
| Year Ended December 31, 2018
| PSG |  | ASG |  | ISG |  | Total
Geographic Location |  |  |  |  |  |  |
Singapore | $ | 1,086.6 |  |  | $ | 704.2 |  |  | $ | 164.2 |  |  | $ | 1,955.0 |
Hong Kong | 847.9 |  |  | 496.5 |  |  | 144.7 |  |  | 1,489.1 |
United Kingdom | 488.5 |  |  | 319.8 |  |  | 138.2 |  |  | 946.5 |
United States | 398.5 |  |  | 339.2 |  |  | 125.0 |  |  | 862.7 |
Other | 216.7 |  |  | 211.5 |  |  | 196.8 |  |  | 625.0 |
Total | $ | 3,038.2 |  |  | $ | 2,071.2 |  |  | $ | 768.9 |  |  | $ | 5,878.3 |
Sales Channel |  |  |  |  |  |  |
Distributors | $ | 2,011.1 |  |  | $ | 1,066.4 |  |  | $ | 464.2 |  |  | $ | 3,541.7 |
OEM | 846.8 |  |  | 860.7 |  |  | 263.4 |  |  | 1,970.9 |
Electronic Manufacturing Service Providers | 180.3 |  |  | 144.1 |  |  | 41.3 |  |  | 365.7 |
Total | $ | 3,038.2 |  |  | $ | 2,071.2 |  |  | $ | 768.9 |  |  | $ | 5,878.3 |
Summary of Property, Plant and Equipment by Geographic Location | Property, plant and equipment, net by geographic location, are summarized as follows (in millions):
| As of December 31, |  |
| 2020 |  | 2019 |  |
United States | $ | 686.6 |  |  | $ | 616.7 |  |  |
South Korea | 455.5 |  |  | 485.4 |  |  |
Philippines | 386.6 |  |  | 433.5 |  |  |
China | 229.6 |  |  | 243.6 |  |  |
Japan | 209.3 |  |  | 218.1 |  |  |
Czech Republic | 216.1 |  |  | 213.4 |  |  |
Malaysia | 190.2 |  |  | 204.4 |  |  |
Other | 138.4 |  |  | 176.5 |  |  |
| $ | 2,512.3 |  |  | $ | 2,591.6 |  |  |
Schedule of Segments and Product Lines | These segments represent the Company's view of the business and as such are used to evaluate progress of major initiatives and allocation of resources.
PSG |  | ASG |  | ISG
Analog products |  | Analog products |  | LSI products
Discrete products |  | ASIC products |  | Sensors
MOSFET products |  | Connectivity products |  |
Power Module products |  | ECL products |  |
Isolation products |  | Foundry products / services |  |
Memory products |  | Gate Driver products |  |
Gate Driver products |  | LSI products |  |
Standard Logic products |  | Standard Logic products |  |
WBG products |  |  |  |

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