| PROGRESSIVE CORP/OH/ |
| Q4-CY2025 | Q3-CY2025 | Q2-CY2025 | Q1-CY2025 | Q4-CY2024 | Q3-CY2024 | Q2-CY2024 | Q1-CY2024 | Q4-CY2023 | Q3-CY2023 | Q2-CY2023 | Q1-CY2023 | Q4-CY2022 | Q3-CY2022 | Q2-CY2022 | Q1-CY2022 | Q4-CY2021 | Q3-CY2021 | Q2-CY2021 | Q1-CY2021 | Q4-CY2020 | Q3-CY2020 | Q2-CY2020 | Q1-CY2020 | Q4-CY2019 | Q3-CY2019 | Q2-CY2019 | Q1-CY2019 | Q4-CY2018 | Q3-CY2018 | Q2-CY2018 | Q1-CY2018 | Q4-CY2017 | Q3-CY2017 | Q2-CY2017 | Q1-CY2017 | Q4-CY2016 | Q3-CY2016 | Q2-CY2016 | Q1-CY2016 | Q4-CY2015 | Q3-CY2015 | Q2-CY2015 | Q1-CY2015 | Q4-CY2014 | Q3-CY2014 | Q2-CY2014 | Q1-CY2014 | Q4-CY2013 |
| Balance Sheet Date | | | 2025-Jun-30 | 2025-Mar-31 | 2024-Dec-31 | 2024-Sep-30 | 2024-Jun-30 | 2024-Mar-31 | 2023-Dec-31 | 2023-Sep-30 | 2023-Jun-30 | 2023-Mar-31 | 2022-Dec-31 | 2022-Sep-30 | 2022-Jun-30 | 2022-Mar-31 | 2021-Dec-31 | 2021-Sep-30 | 2021-Jun-30 | 2021-Mar-31 | 2020-Dec-31 | 2020-Sep-30 | 2020-Jun-30 | 2020-Mar-31 | 2019-Dec-31 | 2019-Sep-30 | 2019-Jun-30 | 2019-Mar-31 | 2018-Dec-31 | 2018-Sep-30 | 2018-Jun-30 | 2018-Mar-31 | 2017-Dec-31 | 2017-Sep-30 | 2017-Jun-30 | 2017-Mar-31 | 2016-Dec-31 | 2016-Sep-30 | 2016-Jun-30 | 2016-Mar-31 | 2015-Dec-31 | 2015-Sep-30 | 2015-Jun-30 | 2015-Mar-31 | 2014-Dec-31 | 2014-Sep-30 | 2014-Jun-30 | 2014-Mar-31 | 2013-Dec-31 |
| Fiscal Period | | | Q2-FY2025 | Q1-FY2025 | Q4-FY2024 | Q3-FY2024 | Q2-FY2024 | Q1-FY2024 | Q4-FY2023 | Q3-FY2023 | Q2-FY2023 | Q1-FY2023 | Q4-FY2022 | Q3-FY2022 | Q2-FY2022 | Q1-FY2022 | Q4-FY2021 | Q3-FY2021 | Q2-FY2021 | Q1-FY2021 | Q4-FY2020 | Q3-FY2020 | Q2-FY2020 | Q1-FY2020 | Q4-FY2019 | Q3-FY2019 | Q2-FY2019 | Q1-FY2019 | Q4-FY2018 | Q3-FY2018 | Q2-FY2018 | Q1-FY2018 | Q4-FY2017 | Q3-FY2017 | Q2-FY2017 | Q1-FY2017 | Q4-FY2016 | Q3-FY2016 | Q2-FY2016 | Q1-FY2016 | Q4-FY2015 | Q3-FY2015 | Q2-FY2015 | Q1-FY2015 | Q4-FY2014 | Q3-FY2014 | Q2-FY2014 | Q1-FY2014 | Q4-FY2013 |
| Operating Cash Flow | | | 4,040,000,000$ | 5,143,000,000$ | 3,007,300,000$ | 4,610,500,000$ | 3,267,000,000$ | 4,235,000,000$ | 2,437,000,000$ | 3,419,500,000$ | 2,337,000,000$ | 2,449,500,000$ | 929,800,000$ | 2,027,300,000$ | 1,389,600,000$ | 2,502,300,000$ | 452,100,000$ | 2,371,200,000$ | 2,323,900,000$ | 2,614,500,000$ | 1,547,300,000$ | 1,479,700,000$ | 2,252,800,000$ | 1,625,800,000$ | 1,128,200,000$ | 1,758,700,000$ | 1,506,200,000$ | 1,868,500,000$ | 1,083,300,000$ | 1,718,200,000$ | 1,736,200,000$ | 1,747,100,000$ | 533,700,000$ | 1,200,500,000$ | 918,200,000$ | 1,104,400,000$ | 456,900,000$ | 704,500,000$ | 752,500,000$ | 818,800,000$ | 132,500,000$ | 730,400,000$ | 658,900,000$ | 771,100,000$ | 68,100,000$ | 616,300,000$ | 380,600,000$ | 660,600,000$ | 151,900,000$ |
| Investing Cash Flow | | | (4,040,000,000$) | (2,341,000,000$) | (2,941,400,000$) | (4,420,800,000$) | (3,263,000,000$) | (3,124,000,000$) | (2,345,700,000$) | (3,352,100,000$) | (2,867,000,000$) | (2,277,200,000$) | (994,900,000$) | (1,781,500,000$) | (1,377,100,000$) | (3,802,500,000$) | 455,300,000$ | (1,556,600,000$) | (2,243,400,000$) | 224,900,000$ | (1,466,200,000$) | (1,380,400,000$) | (2,217,300,000$) | (1,053,800,000$) | (885,300,000$) | (1,673,900,000$) | (1,501,700,000$) | (277,400,000$) | (1,378,300,000$) | (1,700,400,000$) | (1,775,600,000$) | (2,180,600,000$) | (507,400,000$) | (996,900,000$) | (1,239,800,000$) | (662,600,000$) | (340,200,000$) | (1,135,200,000$) | (755,700,000$) | (249,600,000$) | (64,700,000$) | (712,800,000$) | (450,000,000$) | (696,400,000$) | (12,300,000$) | (510,400,000$) | (651,200,000$) | 337,000,000$ | 80,600,000$ |
| Financing Cash Flow | | | (72,000,000$) | (2,749,000,000$) | (59,300,000$) | (144,400,000$) | (70,000,000$) | (1,043,000,000$) | (129,800,000$) | (108,500,000$) | 420,900,000$ | (104,600,000$) | (79,100,000$) | (121,000,000$) | (59,300,000$) | 1,385,400,000$ | (990,800,000$) | (643,700,000$) | (89,100,000$) | (2,792,700,000$) | (95,700,000$) | (117,300,000$) | (296,800,000$) | (429,000,000$) | (61,700,000$) | (131,500,000$) | (70,300,000$) | (1,507,400,000$) | 247,300,000$ | (52,800,000$) | 500,000$ | 354,800,000$ | (6,600,000$) | (109,500,000$) | 268,400,000$ | (453,200,000$) | (34,000,000$) | 439,200,000$ | (66,100,000$) | (589,500,000$) | (38,400,000$) | (86,600,000$) | (46,600,000$) | (81,200,000$) | (36,700,000$) | (141,500,000$) | 299,400,000$ | (976,600,000$) | (258,600,000$) |
| End Cash Position | | | 135,000,000$ | 207,000,000$ | 154,000,000$ | 147,000,000$ | 102,000,000$ | 168,000,000$ | 100,000,000$ | 138,400,000$ | 179,500,000$ | 288,600,000$ | 221,000,000$ | 365,300,000$ | 240,500,000$ | 287,300,000$ | 202,000,000$ | 285,500,000$ | 114,600,000$ | 123,200,000$ | 76,500,000$ | 91,100,000$ | 109,100,000$ | 370,400,000$ | 227,400,000$ | 46,200,000$ | 92,900,000$ | 158,700,000$ | 75,000,000$ | 122,700,000$ | 157,700,000$ | 196,600,000$ | 275,300,000$ | 256,300,000$ | 161,800,000$ | 215,000,000$ | 226,400,000$ | | | | 224,400,000$ | | | | 108,400,000$ | | | | |
| Exchange Rate Effect | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 0$ | | | | (700,000$) | | | | | | | | | | | | | | | | |
| Dividends Paid | | | 59,000,000$ | 2,695,000,000$ | 59,100,000$ | 58,600,000$ | 59,000,000$ | 506,000,000$ | 68,300,000$ | 68,800,000$ | 68,000,000$ | 71,900,000$ | 58,700,000$ | 71,900,000$ | 58,500,000$ | 71,900,000$ | 935,000,000$ | 71,900,000$ | 58,500,000$ | 2,707,900,000$ | 58,600,000$ | 71,900,000$ | 58,500,000$ | 1,388,800,000$ | 58,500,000$ | 71,800,000$ | 58,400,000$ | 1,481,300,000$ | 0$ | | 0$ | 654,900,000$ | 0$ | 0$ | 0$ | 395,400,000$ | 0$ | 0$ | 0$ | 519,000,000$ | 0$ | 0$ | 0$ | 403,600,000$ | 0$ | 0$ | 0$ | 892,600,000$ | 0$ |