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SCHEDULE III - Supplementary Insurance Information | 12 Months Ended
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Dec. 31, 2017
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SCHEDULE III - Supplementary Insurance Information | SCHEDULE III — SUPPLEMENTARY INSURANCE INFORMATION THE PROGRESSIVE CORPORATION AND SUBSIDIARIES (millions)
Segment | Deferred policy acquisition costs 1 |  | Future policy benefits, losses, claims, and loss expenses 1 |  | Unearned premiums 1 |  | Other policy claims and benefits payable 1 |  | Premium revenue |  | Net investment income 1,2 |  | Benefits, claims, losses, and settlement expenses |  | Amortization of deferred policy acquisition costs |  | Other operating expenses |  | Net premiums written
Year ended December 31, 2017: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Personal Lines |  |  |  |  |  |  |  |  | $ | 21,947.2 |  |  |  |  | $ | 16,141.4 |  |  | $ | 1,656.4 |  |  | $ | 2,954.8 |  |  | $ | 22,928.4 |
Commercial Lines |  |  |  |  |  |  |  |  | 2,793.9 |  |  |  |  | 1,966.4 |  |  | 309.3 |  |  | 335.3 |  |  | 3,112.7 |
Property |  |  |  |  |  |  |  |  | 988.8 |  |  |  |  | 700.2 |  |  | 159.2 |  |  | 190.4 |  |  | 1,091.0 |
Other indemnity |  |  |  |  |  |  |  |  | 0 |  |  |  |  | 0 |  |  | 0 |  |  | 0.2 |  |  | 0 |
Total | $ | 780.5 |  |  | $ | 13,086.9 |  |  | $ | 8,903.5 |  |  | $ | 0 |  |  | $ | 25,729.9 |  |  | $ | 539.2 |  |  | $ | 18,808.0 |  |  | $ | 2,124.9 |  |  | $ | 3,480.7 |  |  | $ | 27,132.1 |
Year ended December 31, 2016: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Personal Lines |  |  |  |  |  |  |  |  | $ | 19,188.2 |  |  |  |  | $ | 14,591.1 |  |  | $ | 1,446.6 |  |  | $ | 2,549.2 |  |  | $ | 19,819.5 |
Commercial Lines |  |  |  |  |  |  |  |  | 2,421.3 |  |  |  |  | 1,741.0 |  |  | 266.7 |  |  | 285.4 |  |  | 2,598.3 |
Property |  |  |  |  |  |  |  |  | 864.5 |  |  |  |  | 546.1 |  |  | 150.5 |  |  | 137.2 |  |  | 935.7 |
Other indemnity |  |  |  |  |  |  |  |  | 0 |  |  |  |  | 1.4 |  |  | 0 |  |  | 0.2 |  |  | 0 |
Total | $ | 651.2 |  |  | $ | 11,368.0 |  |  | $ | 7,468.3 |  |  | $ | 0 |  |  | $ | 22,474.0 |  |  | $ | 456.5 |  |  | $ | 16,879.6 |  |  | $ | 1,863.8 |  |  | $ | 2,972.0 |  |  | $ | 23,353.5 |
Year ended December 31, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Personal Lines |  |  |  |  |  |  |  |  | $ | 17,294.5 |  |  |  |  | $ | 12,748.7 |  |  | $ | 1,331.3 |  |  | $ | 2,379.9 |  |  | $ | 17,703.6 |
Commercial Lines |  |  |  |  |  |  |  |  | 1,995.9 |  |  |  |  | 1,244.5 |  |  | 219.4 |  |  | 232.6 |  |  | 2,171.2 |
Property |  |  |  |  |  |  |  |  | 609.1 |  |  |  |  | 349.0 |  |  | 101.1 |  |  | 98.8 |  |  | 689.6 |
Other indemnity |  |  |  |  |  |  |  |  | (0.4 | ) |  |  |  | (0.2 | ) |  | 0 |  |  | 0.8 |  |  | (0.4 | )
Total | $ | 564.1 |  |  | $ | 10,039.0 |  |  | $ | 6,621.8 |  |  | $ | 0 |  |  | $ | 19,899.1 |  |  | $ | 431.8 |  |  | $ | 14,342.0 |  |  | $ | 1,651.8 |  |  | $ | 2,712.1 |  |  | $ | 20,564.0 |
1 Progressive does not allocate assets, liabilities, or investment income to operating segments. 2 Excludes total net realized gains (losses) on securities.

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- Definition The entire disclosure for required supplementary insurance information giving segment detail in support of various balance sheet and income statement captions. The balance sheet information generally is presented as of the date of each audited balance sheet filed, and the income statement information generally is presented for each period for which an audited income statement is required to be filed. Supplementary insurance information table includes segment name; deferred policy acquisition costs; future policy benefits, losses, claims and loss expenses; unearned premiums; other policy claims and benefits payable; premium revenue; net investment income; benefits, claims, losses and settlement expenses; amortization of deferred policy acquisition costs; other operating expenses; and premiums written. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.7-05.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=6879921&loc=d3e569147-122900 + Details
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- References No definition available. + Details
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