XML 66 R54.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock compensation - RSU and PSU award activity (Details) - $ / shares
 1 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2018
Restricted Stock Units (RSUs)    
Shares Available For Grant    
Shares Available for Grant Beginning Balance (in shares)   769,202
Additional authorization (in shares)   1,000,000
Granted (in shares)   (322,593)
Cancelled (in shares)   43,588
Shares Available for Grant Ending Balance (in shares) 1,043,697 1,043,697
Shares Subject to Outstanding Options, Shares    
Outstanding at the beginning of the period (in shares)   1,178,660
Granted (in shares) 190,000,000 322,593
Cancelled (in shares)   (43,588)
Released (in shares)   (176,590)
Outstanding at the end of the period (in shares) 1,727,575 1,727,575
Shares Subject to Outstanding Options, Weighted Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share)   $ 98.88
Granted (in dollars per share)   73.90
Cancelled (in dollars per share)   103.70
Released (in dollars per share)   81.70
Outstanding at the end of the period (in dollars per share) $ 87.29 $ 87.29
Performance Stock Units (PSUs)    
Shares Available For Grant    
Granted (in shares)   (446,500)
Shares Subject to Outstanding Options, Shares    
Granted (in shares) 446,500,000 446,500
Shares Subject to Outstanding Options, Weighted Average Exercise Price    
Granted (in dollars per share)   $ 65.76