XML 65 R54.htm IDEA: XBRL DOCUMENT v3.5.0.2
Earnings and Dividends per Share - Additional Information (Detail) - $ / shares
shares in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Aug. 08, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Earnings And Dividends Per Share [Abstract]            
Shares not included in computation of diluted Earning per share     1.1 1.3 1.4 1.3
Common Stock, dividends, per share, declared   $ 0.066        
Common Stock, dividends, per share, Paid $ 0.066