Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Shareholders' Equity [Abstract]

Summary of Share Repurchases

	For the year
	ended December 31,
	2020		2019		2018
Total number of shares purchased (in millions) (1)		3.1		2.0		5.0
Average price paid per share (1)	$	280.17	$	231.87	$	159.87
Total price paid (in millions) (1)	$	856.0	$	470.3	$	795.5

Subsequent to December 31, 2020, the Company made the following share repurchases:

Total number of shares purchased (in millions) (1)		0.5
Average price paid per share (1)	$	262.16
Total price paid (in millions) (1)	$	144.0

(1)Amounts are calculated based on the trade date which differs from the Consolidated Statements of Cash Flows which calculate share repurchases based on settlement date.

Schedule of Dividends Paid and Dividends Declared

As of December 31, 2020, the Company paid the following cash dividends:

	Payable to Shareholders
	of Record At the Close	Cash Paid	Aggregate Amount
Date Declared	of Business on	Per Share	Paid	Date Paid
February 20, 2020	March 10, 2020	$0.465	$52.2 million	March 26, 2020
May 5, 2020	May 28, 2020	$0.465	$52.0 million	June 18, 2020
August 3, 2020	August 25, 2020	$0.465	$52.0 million	September 21, 2020
November 2, 2020	November 19, 2020	$0.465	$51.5 million	December 17, 2020

Dividends paid in 2020 and 2019 were ordinary dividends.

Subsequent to December 31, 2020, the Company declared the following cash dividends:

	Payable to Shareholders	Cash to
	of Record At the Close	be Paid
Date Declared	of Business on	Per Share	Date to be Paid
February 19, 2021	March 10, 2021	$0.58	March 26, 2021