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Financing Arrangements - Long-term debt - Stated value (Details 3) - USD ($) $ in Millions | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2021 | Aug. 19, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Stated value of issued debt |  |  | $ 3,362.1 |  | $ 3,395.6 |
Fair value adjustment of debt |  |  | 5.4 |  | 7.7 |
Debt Instrument, Unamortized Discount |  |  | 5.8 |  | 6.1 |
Total long term debt |  |  | 3,361.7 |  | 3,397.2 |
Stated value of current portion of issued debt |  |  | 129.2 |  | 983.9 |
Fair value adjustment of current portion of long-term debt |  |  | 1.3 |  | 2.0 |
Debt Instrument, Unamortized Discount, Current |  |  | 0.4 |  | 0.6 |
Carrying Value, current portion |  |  | 130.1 |  | 985.3 |
Stated value of noncurrent portion of issued debt |  |  | 3,232.9 |  | 2,411.7 |
Fair Market Value Adjustment, Total long term debt noncurrent |  |  | 4.1 |  | 5.7 |
Debt Instrument, Unamortized Discount, Noncurrent |  |  | 5.4 |  | 5.5 |
Total long-term debt, less current maturities |  |  | 3,231.6 |  | $ 2,411.9 |
Letters of Credit Outstanding, Amount |  |  | $ 50.0 |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.15% | 0.40% | 0.15% |  | 0.15% |
Repayments of Subordinated Debt |  |  |  |  | $ 550.0 |
Servicing Liability |  |  | $ 0.0 |  | 0.0 |
The Mosaic Credit Facility amount of revolving credit loans |  | $ 2,500.0 |  |  |  |
Maturities of Long-term Debt |  |  |  |  |  |
2024 |  |  | 130.1 |  |  |
2025 |  |  | 45.7 |  |  |
2026 |  |  | 28.8 |  |  |
2027 |  |  | 710.5 |  |  |
2028 |  |  | 554.3 |  |  |
Thereafter |  |  | 1,892.3 |  |  |
Total long term debt |  |  | 3,361.7 |  | 3,397.2 |
Mosaic Credit Facility |  |  |  |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Letters of Credit Outstanding, Amount |  |  | 10.5 |  | 10.9 |
Line of Credit Facility, Commitment Fee Amount |  |  | $ 3.8 |  | $ 3.8 | $ 7.0
Senior Notes | Senior Notes Due 2022 [Member] |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 3.25% |  | 3.25% |
Long term debt including current maturities |  |  | $ 550.0 |  |  |
Senior Notes | Senior Notes Due 2027 [Member] |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 4.05% |  |  |
Long term debt including current maturities |  |  | $ 700.0 |  |  |
Senior Notes | Senior Notes Due 2033 |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 5.45% |  |  |
Long term debt including current maturities |  |  | $ 500.0 |  |  |
Senior Notes | Senior Notes Due 2043 |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 5.625% |  |  |
Long term debt including current maturities |  |  | $ 600.0 |  |  |
Senior Notes | Senior Notes Due 2041 |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 4.875% |  |  |
Long term debt including current maturities |  |  | $ 300.0 |  |  |
Senior Notes | Senior Notes Due 2023 |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 4.25% |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Repayments of Subordinated Debt |  |  | $ 900.0 |  |  |
Senior Notes | Senior Notes Due 2028 |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 5.375% |  |  |
Long term debt including current maturities |  |  | $ 400.0 |  |  |
Debentures | Debentures Due 2028 |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Long term debt including current maturities |  |  | $ 147.1 |  |  |
Unsecured Notes |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Effective interest rate |  |  | 5.49% |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Stated value of issued debt |  |  | $ 2,500.0 |  | $ 3,000.0 |
Fair value adjustment of debt |  |  | 0.0 |  | 0.0 |
Debt Instrument, Unamortized Discount |  |  | 5.8 |  | 6.1 |
Total long term debt |  |  | 2,494.2 |  | 2,993.9 |
Maturities of Long-term Debt |  |  |  |  |  |
Total long term debt |  |  | $ 2,494.2 |  | 2,993.9 |
Unsecured Notes | Minimum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 4.05% |  |  |
Unsecured Notes | Maximum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 5.63% |  |  |
Unsecured Debentures |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Effective interest rate |  |  | 7.19% |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Stated value of issued debt |  |  | $ 147.1 |  | 147.1 |
Fair value adjustment of debt |  |  | 0.4 |  | 0.6 |
Debt Instrument, Unamortized Discount |  |  | 0.0 |  | 0.0 |
Total long term debt |  |  | 147.5 |  | 147.7 |
Maturities of Long-term Debt |  |  |  |  |  |
Total long term debt |  |  | $ 147.5 |  | 147.7 |
Unsecured Debentures | Maximum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 7.30% |  |  |
Finance Leases |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Effective interest rate |  |  | 4.16% |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Stated value of issued debt |  |  | $ 180.0 |  | 194.3 |
Fair value adjustment of debt |  |  | 0.0 |  | 0.0 |
Debt Instrument, Unamortized Discount |  |  | 0.0 |  | 0.0 |
Total long term debt |  |  | 180.0 |  | 194.3 |
Maturities of Long-term Debt |  |  |  |  |  |
Total long term debt |  |  | $ 180.0 |  | 194.3 |
Finance Leases | Minimum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 0.77% |  |  |
Finance Leases | Maximum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 19.72% |  |  |
Other |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Effective interest rate |  |  | 6.43% |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Stated value of issued debt |  |  | $ 35.0 | [1] | 54.2 |
Fair value adjustment of debt |  |  | 5.0 |  | 7.1 |
Debt Instrument, Unamortized Discount |  |  | 0.0 |  | 0.0 |
Total long term debt |  |  | 40.0 | [1] | 61.3 |
Maturities of Long-term Debt |  |  |  |  |  |
Total long term debt |  |  | $ 40.0 | [1] | 61.3 |
Other | Minimum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 6.53% |  |  |
Other | Maximum |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 8.00% |  |  |
Term Loan |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Effective interest rate |  |  | 7.08% |  |  |
Term Loan | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |
Stated interest rates: |  |  |  |  |  |
Stated interest rate |  |  | 3000.00% |  |  |
Senior Loans | Senior Unsecured Term Loan Facility |  |  |  |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
The Mosaic Credit Facility amount of revolving credit loans |  |  | $ 700.0 |  |  |
Long-Term Line of Credit |  |  | 500.0 |  |  |
Senior Unsecured Term Loan Facility |  |  |  |  |  |
Long-term Debt, Excluding Current Maturities |  |  |  |  |  |
Stated value of issued debt |  |  | 500.0 |  | 0.0 |
Fair value adjustment of debt |  |  | 0.0 |  | 0.0 |
Debt Instrument, Unamortized Discount |  |  | 0.0 |  | 0.0 |
Total long term debt |  |  | 500.0 |  | 0.0 |
Maturities of Long-term Debt |  |  |  |  |  |
Total long term debt |  |  | $ 500.0 |  | $ 0.0 |
[1] | Includes deferred financing fees related to our long-term debt.

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