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Short-term and Long-term Debt - (Tables) | 9 Months Ended
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Sep. 30, 2023
Debt Disclosure [Abstract] |
Schedule of Short-term and Long-term Debt | Short-term and long-term debt as of September 30, 2023, and December 31, 2022, consisted of the following:
(Amounts in millions) | September 30, 2023 |  | December 31, 2022
3.25% unsecured notes due 2027 | $ | 300.0 |  |  | $ | 300.0 |
4.10% unsecured notes due 2048 | 400.0 |  |  | 400.0 |
3.10% unsecured notes due 2050 | 500.0 |  |  | 500.0 |
Other* | 1.7 |  |  | 1.0 |
| 1,201.7 |  |  | 1,201.0 |
Less: notes payable | (17.3) |  |  | (17.2) |
Total long-term debt | $ | 1,184.4 |  |  | $ | 1,183.8 |
* | Includes unamortized debt issuance costs and issuance discounts.

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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