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Income Taxes Incomes Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Operating Loss Carryforwards [Line Items]            
Income tax provision (benefit)   $ 357.0 $ 85.0 $ 758.0 $ 103.0  
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount         22.0  
Less: Net earnings attributable to noncontrolling interest   $ 174.0 $ 71.0 $ 342.0 $ 95.0  
Effective Income Tax Rate Reconciliation, period increase/(decrease) due to noncontrolling interest   2.40% 4.60% 2.90% 3.30%  
Effective Income Tax Rate Reconciliation, Percent   21.10% 21.20% 24.10% 17.40%  
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount       $ 22.0    
Unrecognized Tax Benefits $ 351.0 $ 351.0   351.0   $ 27.0
Income Tax Examination, Penalties and Interest Accrued 125.0 125.0   125.0   $ 4.0
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest   $ 1,696.0 $ 402.0 $ 3,148.0 $ 595.0  
Effective Income Tax Rate Reconciliation, Percent   21.10% 21.20% 24.10% 17.40%  
Foreign Tax Authority | Canada Revenue Agency [Member]            
Operating Loss Carryforwards [Line Items]            
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount       $ 78.0    
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority 232.0 $ 232.0   232.0    
Income Tax Examination, Interest Expense 103.0          
Foreign Tax Authority | Canada Revenue Agency [Member] | Tax Years 2006-2011            
Operating Loss Carryforwards [Line Items]            
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority 129.0 129.0   129.0    
Income Tax Examination, Interest Expense   5.0   104.0    
Unrecognized Tax Benefits, Interest on Income Taxes Accrued 104.0 104.0   104.0    
Effective Income Tax Rate Reconciliation, Tax Contingency, Foreign, Amount   2.0   78.0    
Foreign Tax Authority | Canada Revenue Agency [Member] | Tax Years 2012 and After            
Operating Loss Carryforwards [Line Items]            
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions       314.0    
Income Taxes Receivable, Noncurrent 359.0 359.0   359.0    
Accrued Income Taxes, Noncurrent 30.0 30.0   30.0    
Unrecognized Tax Benefits, Income Tax Penalties Accrued 116.0 116.0   116.0    
Foreign Tax Authority | Canada Revenue Agency [Member] | Tax Year 2012 and After            
Operating Loss Carryforwards [Line Items]            
Income Tax Examination, Interest Expense   23.0   86.0    
Effective Income Tax Rate Reconciliation, Tax Contingency, Foreign, Amount   21.0   19.0    
Income Tax Examination, Estimate of Possible Loss       26.0    
Unrecognized Tax Benefits, Estimated Interest on Income Taxes Accrued, Net of Taxes 93.0 93.0   93.0    
Income Tax Examination, Interest Expense, Net of Taxes   24.0        
Domestic Tax Authority            
Operating Loss Carryforwards [Line Items]            
Income Taxes Receivable $ 51.0 $ 51.0   $ 51.0