XML 61 R84.htm IDEA: XBRL DOCUMENT v3.19.3
Subsequent Event (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
Oct. 24, 2019
Sep. 27, 2019
Subsequent event    
Subsequent Event [Line Items]    
Make-whole premiums $ 7  
Make-whole premiums, after-tax $ 5  
Make-whole premiums, per diluted share $ 0.01  
Senior notes | 2.4% senior notes due 2020    
Subsequent Event [Line Items]    
Interest rate of debt instrument   2.40%
Senior notes | 2.4% senior notes due 2020 | Subsequent event    
Subsequent Event [Line Items]    
Aggregate principal amount $ 500  
Interest rate of debt instrument 2.40%  
Senior notes | 5.0% senior notes due 2020    
Subsequent Event [Line Items]    
Interest rate of debt instrument   5.00%
Senior notes | 5.0% senior notes due 2020 | Subsequent event    
Subsequent Event [Line Items]    
Aggregate principal amount $ 375  
Interest rate of debt instrument 5.00%