XML 82 R72.htm IDEA: XBRL DOCUMENT v3.8.0.1
Equity (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Oct. 17, 2017
Jul. 19, 2017
Sep. 29, 2017
Sep. 23, 2016
Sep. 29, 2017
Sep. 23, 2016
May 08, 2017
Dec. 04, 2014
Class of Stock [Line Items]                
Aggregate amount of repurchased shares         $ 91 $ 326    
Cash dividends declared per common share (in dollars per share)   $ 0.75 $ 0.75 $ 0.70 $ 2.25 $ 2.10    
Dividend declared date         Jul. 19, 2017      
Dividend paid date         Sep. 15, 2017      
Dividend paid, record date         Aug. 17, 2017      
Cash dividends         $ 178      
Accrued dividends through payment         1      
Subsequent Event [Member]                
Class of Stock [Line Items]                
Cash dividends declared per common share (in dollars per share) $ 0.75              
Dividend declared date Oct. 17, 2017              
Dividend paid date Dec. 15, 2017              
Dividend paid, record date Nov. 17, 2017              
Treasury Stock [Member]                
Class of Stock [Line Items]                
Aggregate amount of repurchased shares         $ 91 $ 326    
Share Repurchase Program December 4, 2014 [Member]                
Class of Stock [Line Items]                
Amount of shares authorized to be repurchased               $ 1,500
Share Repurchase Program December 4, 2014 [Member] | Treasury Stock [Member]                
Class of Stock [Line Items]                
Number of common shares repurchased (in shares)         516,045      
Average price per share of repurchased shares (in dollars per share)         $ 176.32      
Aggregate amount of repurchased shares         $ 91      
Share Repurchase Program May 8, 2017 [Member]                
Class of Stock [Line Items]                
Amount of shares authorized to be repurchased             $ 1,500