Quarterly report pursuant to Section 13 or 15(d)

DEBT - Senior Notes and Debt Redemption (Details)

v3.20.4
DEBT - Senior Notes and Debt Redemption (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2020
Feb. 29, 2020
Mar. 31, 2019
Nov. 30, 2014
Debt Instrument                  
Repayment of debt       $ 50,000,000 $ 275,000,000        
Debt outstanding       $ 3,490,000,000   $ 3,500,000,000      
Senior notes                  
Debt Instrument                  
Redemption price       101.00%          
Fair value disclosure       $ 4,140,000,000   $ 4,010,000,000.00      
Senior notes | 2020 Senior Notes                  
Debt Instrument                  
Debt face amount             $ 750,000,000.0    
Senior notes | 2019 Senior Notes                  
Debt Instrument                  
Debt face amount               $ 1,200,000,000  
Senior notes | 2014 Senior Notes                  
Debt Instrument                  
Debt face amount                 $ 2,500,000,000
Repayment of debt $ 500,000,000.0 $ 250,000,000.0 $ 250,000,000.0            
Debt outstanding       $ 1,500,000,000