XML 122 R100.htm IDEA: XBRL DOCUMENT v3.20.2
CAPITAL STOCK - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2018
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Class of Stock [Line Items]            
Options exercised under incentive plans (in shares)         11,300,000.0  
Authorized amount of stock available for repurchase     $ 1,500,000,000   $ 1,500,000,000  
Shares repurchased (in shares)   22,900,000   22,900,000    
Aggregate stock offering price   $ 143,300,000   $ 143,300,000    
Preferred stock, par value (in dollars per share)   $ 0.01   $ 0.01   $ 0.01
Preferred stock, redemption price (in dollars per share)   $ 25.00   $ 25.00    
Preferred stock, shares issued (in shares)   81,900,000   81,900,000   81,900,000
Series H            
Class of Stock [Line Items]            
Preferred stock, redemption price (in dollars per share)     $ 25.00   $ 25.00  
Preferred stock dividend rate, percentage         8.125%  
Series I            
Class of Stock [Line Items]            
Preferred stock dividend rate, percentage       6.75% 6.75%  
Preferred stock, shares issued (in shares)   17,700,000 16,000,000.0 17,700,000 16,000,000.0 17,700,000
Proceeds from issuance of preferred stock         $ 400,000,000.0  
Public Offering            
Class of Stock [Line Items]            
Sale of stock, shares issued (in shares)         75,000,000.0  
Proceeds from sale of stock         $ 730,500,000  
Public Offering, Additional Share Purchase Option            
Class of Stock [Line Items]            
Sale of stock, shares issued (in shares)         11,300,000  
Proceeds from sale of stock         $ 109,600,000  
Option to purchase additional shares, period         30 days  
Public Offering, Additional Share Purchase Option | Series I            
Class of Stock [Line Items]            
Preferred stock, shares issued (in shares)     2,400,000   2,400,000  
Preferred stock, option to purchase additional shares, period         30 days  
At-the-market Sale Program            
Class of Stock [Line Items]            
Sale of stock, shares issued (in shares)     8,000,000.0 0 56,000,000.0  
Proceeds from sale of stock     $ 80,100,000   $ 569,100,000  
Aggregate stock offering price $ 1,500,000,000          
Preferred stock            
Class of Stock [Line Items]            
Preferred stock redeemed   $ 0 $ 55,000,000 $ 0 $ 55,000,000  
Preferred stock | Series H            
Class of Stock [Line Items]            
Preferred stock redeemed (in shares)         2,200,000  
Preferred stock redeemed         $ 55,000,000.0