Earnings Per Share - Schedule Of Anti-Dilutive Options and Awards (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average exercise price of stock options excluded from the calculation of diluted EPS (in dollars per share)	$ 21.03	$ 24.38	$ 21.39	$ 24.60
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from the calculation of diluted EPS (in shares)	2,773	2,446	2,692	2,428
Other Equity Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from the calculation of diluted EPS (in shares)	2,403	565	1,985	404