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Income Taxes - Schedule of Composition of Income Tax Expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current:      
Federal $ 3,312.0 $ 3,017.9 $ 2,153.6
Foreign 1,430.3 613.0 547.7
State 31.2 24.3 45.5
Total current tax expense 4,773.5 3,655.2 2,746.8
Deferred:      
Federal (2,178.7) (2,369.0) (1,992.4)
Foreign (473.1) 34.2 (78.2)
State (31.3) (6.2) (114.6)
Total deferred tax benefit (2,683.1) (2,341.0) (2,185.2)
Income taxes 2,090.4 1,314.2 561.6
Current federal tax expense, utilization of net operating loss carryforward $ 129.9 $ 69.3 $ 189.5