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Derivative Financial Instruments - Foreign Exchange Rate Risk (Details)
€ in Millions, ¥ in Millions, $ in Millions, $ in Millions
3 Months Ended 41 Months Ended
Mar. 31, 2021
SGD ($)
$ / bbl
bbl
Mar. 31, 2021
SGD ($)
$ / bbl
bbl
Mar. 31, 2021
USD ($)
$ / bbl
Mar. 31, 2021
EUR (€)
$ / bbl
Mar. 31, 2021
JPY (¥)
$ / bbl
Dec. 31, 2020
SGD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
JPY (¥)
Foreign Exchange Forward                  
Derivative [Line Items]                  
Derivative contract term 18 months                
Options Held                  
Derivative [Line Items]                  
Derivative, nonmonetary notional amount, volume | bbl 148,326 509,456              
Derivative, average price risk option strike price | $ / bbl 60.99 60.99 60.99 60.99 60.99        
USD | Forward Contracts                  
Derivative [Line Items]                  
Derivative, notional amount     $ 13.4       $ 13.4    
USD | Foreign Exchange Forward | Long | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount     50.3            
USD | Foreign Exchange Forward | Short | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount     0.0 € 42.7          
USD | Cross Currency Interest Rate Contract                  
Derivative [Line Items]                  
Derivative, notional amount               $ 87.2  
USD | Cross Currency Interest Rate Contract | Net Investment Hedges                  
Derivative [Line Items]                  
Derivative, notional amount               $ 90.0  
Yen | Foreign Exchange Forward | Long | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount | ¥         ¥ 8,666.4        
Yen | Foreign Exchange Forward | Short | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount     36.3 38.9          
Yen | Cross Currency Interest Rate Contract                  
Derivative [Line Items]                  
Derivative, notional amount | ¥                 ¥ 9,500.0
SGD | Forward Contracts                  
Derivative [Line Items]                  
Derivative, notional amount $ 601.5 $ 601.5       $ 601.5      
SGD | Foreign Exchange Forward | Long | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount $ 65.0 $ 65.0              
SGD | Foreign Exchange Forward | Short | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount     37.4 8.9          
EUR | Foreign Exchange Forward | Long | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount | €       37.8          
EUR | Foreign Exchange Forward | Short | Designated as Hedging Instrument                  
Derivative [Line Items]                  
Derivative, notional amount     $ 46.1 € 0.0