Equity and Redeemable Noncontrolling Interests - ATM Program (Details) - USD ($)		1 Months Ended			3 Months Ended	4 Months Ended	12 Months Ended
	Apr. 30, 2021	May 31, 2021	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Subsidiary or Equity Method Investee [Line Items]
Issuance of common stock, net						$ 1,060,000,000.00	$ 1,745,000	$ 1,067,071,000	$ 791,048,000
2020 ATM Program
Subsidiary or Equity Method Investee [Line Items]
Aggregate amount authorized	$ 1,250,000,000	$ 1,500,000,000
Aggregate amount remaining							$ 1,180,000,000
Maximum shares issuable under forward equity sales agreement (in shares)							9,100,000
Forward rate per share (in dollars per share)							$ 35.25
At-The-Market Program
Subsidiary or Equity Method Investee [Line Items]
Settlement alternatives, fair value (in shares)			5,500,000		16,800,000	16,800,000			5,500,000
Issuance of common stock, net					$ 528,000,000				$ 171,000,000
At-The-Market Program | Minimum
Subsidiary or Equity Method Investee [Line Items]
Option indexed to issuers equity, term							1 year
At-The-Market Program | Maximum
Subsidiary or Equity Method Investee [Line Items]
Option indexed to issuers equity, term							2 years
2020 ATM Program, Settled
Subsidiary or Equity Method Investee [Line Items]
Settlement alternatives, fair value (in shares)							0
Forward contract, outstanding (in shares)							9,100,000
2019 ATM Program
Subsidiary or Equity Method Investee [Line Items]
Maximum shares issuable under forward equity sales agreement (in shares)								2,000,000	20,300,000
Forward rate per share (in dollars per share)								$ 35.23	$ 31.44
Forward Equity Offering
Subsidiary or Equity Method Investee [Line Items]
Option indexed to issuers equity, term				1 year
Maximum shares issuable under forward equity sales agreement (in shares)				15,300,000					15,300,000
Forward rate per share (in dollars per share)				$ 28.60	$ 31.38				$ 30.91
Issuance of common stock, net			$ 422,000,000
Issuance of common stock, net (in shares)			0
Forward Equity Offering | Maximum
Subsidiary or Equity Method Investee [Line Items]
Sale of stock (in dollars per share)			$ 27.66						27.66
2019 ATM Program, Settled
Subsidiary or Equity Method Investee [Line Items]
Forward contract, outstanding (in shares)								0
ATM Direct Issuances
Subsidiary or Equity Method Investee [Line Items]
Sale of stock (in dollars per share)			$ 31.84						$ 31.84
ATM Direct Issuances | Common Stock
Subsidiary or Equity Method Investee [Line Items]
Issuance of common stock, net									$ 189,000,000
Issuance of common stock, net (in shares)							0	0	5,900,000