XML 115 R69.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Derivatives and Financial Instruments - Narrative (Details) - Cash Flow Hedging - Interest rate swap contracts - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Aug. 31, 2019
Derivative [Line Items]    
Derivative maturity 2 years  
Designated as Hedging Instrument    
Derivative [Line Items]    
Notional amount   $ 500
Minimum | Designated as Hedging Instrument    
Derivative [Line Items]    
Fixed interest rate 1.63%  
Maximum | Designated as Hedging Instrument    
Derivative [Line Items]    
Fixed interest rate 1.70%