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Subsequent Events Subsequent Events (Details)
$ in Billions
6 Months Ended
Jun. 30, 2020
USD ($)
Subsequent Events [Abstract]  
Line of Credit, Current $ 1.0
Noncontrolling Interest [Line Items]  
Noncontrolling Interest, Target Ownership Percentage by Noncontrolling Owners 35.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 49.00%