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Supplementary Financial Information - Selected Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Supplementary Financial Information - Selected Quarterly Financial Data (Unaudited) | Note 19: Supplementary Financial Information - Selected Quarterly Financial Data (Unaudited) Consolidated unaudited quarterly financial information is as follows (in millions, except per share data):
| Quarters ended in 2019 |  |  |  |  |  |
| March 29 |  | June 28 |  | September 27 (1) |  | December 31
Revenue | $ | 1,386.6 |  |  | $ | 1,347.7 |  |  | $ | 1,381.8 |  |  | $ | 1,401.8 |
Gross Profit (exclusive of the amortization of acquisition-related intangible assets) | 513.7 |  |  | 499.0 |  |  | 475.2 |  |  | 485.7 |
Net income (loss) attributable to ON Semiconductor Corporation | 114.1 |  |  | 101.8 |  |  | (60.7) |  |  | 56.5 |
Diluted net income (loss) per common share attributable to ON Semiconductor Corporation | 0.27 |  |  | 0.24 |  |  | (0.15) |  |  | 0.14 |
(1) The net loss for the quarter ended September 27, 2019 was primarily due to the expensing of $169.5 million relating to the settlement of litigation with PI. |  |  |  |  |  |  |
| Quarters ended in 2018 |  |  |  |  |  |
| March 30 |  | June 29 |  | September 28 |  | December 31
Revenue | $ | 1,377.6 |  |  | $ | 1,455.9 |  |  | $ | 1,541.7 |  |  | $ | 1,503.1 |
Gross Profit (exclusive of the amortization of acquisition-related intangible assets) | 517.4 |  |  | 555.0 |  |  | 596.6 |  |  | 569.7 |
Net income attributable to ON Semiconductor Corporation | 139.6 |  |  | 155.3 |  |  | 166.9 |  |  | 165.6 |
Diluted net income per common share attributable to ON Semiconductor Corporation | 0.31 |  |  | 0.35 |  |  | 0.38 |  |  | 0.39 |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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