XML 73 R62.htm IDEA: XBRL DOCUMENT v3.19.2
Employee Share Plans - Additional Information (Detail) - shares
shares in Millions
6 Months Ended
May 09, 2019
Jun. 30, 2019
Performance Shares [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, remaining contractual terms   3 years
Performance share units, vesting period   3 years
Achievement of an earnings per share target   70.00%
Achievement of total growth in revenue   30.00%
Percentage of initial grant   200.00%
2019 Plan [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Maximum stock based compensation awards granted under the plan 9.6  
Stock awards expiry 2029