Share-Based Compensation (Grants of Stock Options and RSUs) (Details) - $ / shares	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Stock Options [Member]
Equity awards, granted, in shares	1,020,535	1,285,257
Weighted average fair value per award, in dollars per share	$ 16.75	$ 17.17
RSUs [Member]
Equity awards, granted, in shares	211,307	265,964
Weighted average fair value per award, in dollars per share	$ 104.09	$ 102.81
Phantom Share Units (PSUs) [Member]
Equity awards, granted, in shares	278,468	311,158
Weighted average fair value per award, in dollars per share	$ 140.72	$ 111.04