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Indebtedness (Details Textual) - USD ($)
12 Months Ended
Jan. 28, 2020
Dec. 31, 2019
Dec. 31, 2015
Dec. 31, 2018
Debt Instrument        
Costs associated with the Senior Notes offerings     $ 47,500,000  
Redemptions percentage of 2015 notes   100.00%    
Redemption percentage for change in control provision on the 2015 Senior Notes   101.00%    
Senior unsecured revolving credit facility maximum borrowing capacity     $ 1,000,000,000.0  
Term of credit facility     five  
Amount outstanding under the credit facility   $ 0    
2.90% Senior Notes due 2020        
Debt Instrument        
Senior Notes aggregate principal amount     $ 1,500,000,000  
Interest rate on senior notes   2.90% 2.90%  
Redemption percentage par value of senior notes     99.792%  
3.625% Senior Notes due 2022        
Debt Instrument        
Senior Notes aggregate principal amount     $ 1,000,000,000.0  
Interest rate on senior notes   3.625% 3.625%  
Redemption percentage par value of senior notes     99.92%  
4.05% Senior Notes due 2025        
Debt Instrument        
Senior Notes aggregate principal amount     $ 1,750,000,000  
Interest rate on senior notes   4.05% 4.05%  
Redemption percentage par value of senior notes     99.764%  
5.20% Senior Notes due 2045        
Debt Instrument        
Senior Notes aggregate principal amount     $ 1,750,000,000  
Interest rate on senior notes   5.20% 5.20%  
Redemption percentage par value of senior notes     99.294%  
Interest rate swap | 2.90% Senior Notes due 2020        
Debt Instrument        
Interest rate swap, liability, fair value   $ 2,300,000   $ 14,500,000
Subsequent Event        
Debt Instrument        
Senior unsecured revolving credit facility maximum borrowing capacity $ 1,000,000,000.0      
Term of credit facility five