Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Note [Abstract]

Activities Under Share Repurchase Program

The following table provides activities under the share repurchase programs:

	For the three months ended March 31
	2020		2019
Number of Common Shares repurchased(1)	1,455,854		707,678
Weighted-average price per share(2)	$	321.71	$	261.73
Amount of repurchase (in millions)(2)	$	468	$	185

⁽¹⁾  Includes shares repurchased but not yet cancelled at end of period.

⁽²⁾ 

Includes brokerage fees.