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Fair Value of Financial Instruments - Derivative Fair Value Measurements, Narrative (Details)
$ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
Fair Value Disclosures [Abstract]  
Total derivative assets valued with prices provided by models and other valuation techniques (as a percent) 38.00%
Total derivative liabilities valued with prices provided by models and other valuation techniques (as a percent) 31.00%
Decrease in cost of operations $ 1