XML 36 R59.htm IDEA: XBRL DOCUMENT v3.20.1
Capital Stock - Shares Used To Calculate Earnings (Details) - shares
shares in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Equity [Abstract]    
Basic (shares) 50.6 50.0
Effect of dilutive stock options and awards (shares) 0.7 0.9
Diluted (shares) 51.3 50.9
Antidilutive stock options and awards excluded from denominator (shares) 0.4 0.1
Deferred compensation common stock unit (shares) 0.3 0.3