Issuances of Common Stock (Tables)

12 Months Ended

Dec. 31, 2021

ATM Program

Class of Stock [Line Items]

Schedule of common stock issuances

The following table outlines common stock issuances pursuant to our ATM program (dollars in millions):

	Year Ended December 31,
	2021		2020		2019
Shares of common stock issued under the ATM program	46,290,540		17,724,374		17,051,456
Gross proceeds	$	3,207.9	$	1,094.9	$	1,274.5

DRSPP

Class of Stock [Line Items]

Schedule of common stock issuances

The following table outlines common stock issuances pursuant to our DRSPP program (dollars in millions):

	Year Ended December 31,
	2021		2020		2019
Shares of common stock issued under the DRSPP program	168,000		149,289		117,522
Gross proceeds	$	11.2	$	9.1	$	8.4