XML 70 R59.htm IDEA: XBRL DOCUMENT v3.20.2
Financing Arrangements and Derivative Financial Instruments - Notes Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2020
May 22, 2020
May 18, 2020
Dec. 31, 2019
Debt Instrument [Line Items]        
Notes payable $ 4,115     $ 3,311
9.5% due 2025 | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, principal amount $ 800 $ 200 $ 600  
Interest rate, stated percentage 9.50%   9.50% 9.50%
Notes sold, percentage of principle amount   101.75% 100.00%  
Effective yield   9.056%    
9.5% due 2025 | Senior Notes | Period Commencing May 31, 2022        
Debt Instrument [Line Items]        
Debt instrument, redemption price 104.75%      
9.5% due 2025 | Senior Notes | Period Commencing May 31, 2023        
Debt Instrument [Line Items]        
Debt instrument, redemption price 102.375%      
9.5% due 2025 | Senior Notes | Period Commencing May 31, 2024        
Debt Instrument [Line Items]        
Debt instrument, redemption price 100.00%      
9.5% due 2025 | Senior Notes | Period Prior to May 31, 2022        
Debt Instrument [Line Items]        
Debt instrument, redemption price 109.50%      
9.5% due 2025 | Senior Notes | Period Prior to May 31, 2022 | Maximum        
Debt Instrument [Line Items]        
Debt instrument, redemption price 35.00%      
9.5% due 2025 | Senior Notes | At Any Time Plus Make Whole Premium        
Debt Instrument [Line Items]        
Debt instrument, redemption price 100.00%