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Income Taxes, Provision for Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
U.S. Federal [Abstract] |  |  |
Current | $ 88.1 | $ 81.7 | $ 95.1
Deferred | (160.1) | (5.8) | 29.1
Total U.S. Federal | (72.0) | 75.9 | 124.2
State and Local [Abstract] |  |  |
Current | 33.4 | 29.2 | 34.6
Deferred | (54.6) | 2.1 | 11.8
Total State and Local | (21.2) | 31.3 | 46.4
International [Abstract] |  |  |
Current | 161.2 | 136.3 | 156.0
Deferred | (42.3) | (42.7) | (62.3)
Total International | 118.9 | 93.6 | 93.7
Total provision for income taxes | $ 25.7 | $ 200.8 | $ 264.3
U.S. federal income tax rate | 21.00% | 21.00% | 21.00%
Increase or decrease in current tax expense from utilization of prior years' net operating loss carryovers | $ 69.1 | $ 25.6 | $ 52.4
Current receivable | $ 215.8 | $ 215.2 |

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