Aggregate dividends declared during the period for each share of common stock outstanding.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash outflow for derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

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Aggregate dividends declared during the period for each share of preferred stock outstanding.

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Subsequent Events (Details) - USD ($)			3 Months Ended
Subsequent Events (Details) - USD ($)	Apr. 27, 2021	Apr. 01, 2021	Mar. 31, 2021	Mar. 31, 2020	Apr. 26, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Immediate payment applied from collateral already paid			$ 117,000,000.0	$ 190,600,000
Common stock dividends declared per share (usd per share)			$ 0.155	$ 0.31
Preferred stock dividend declared (in usd per share)			$ 14.75	$ 14.75
Forward contract
Subsequent Event [Line Items]
Derivative liability			$ 192,300,000			$ (309,000,000.0)
Subsequent Event
Subsequent Event [Line Items]
Common stock dividends declared per share (usd per share)	$ 0.17
Preferred stock dividend declared (in usd per share)	$ 14.75
Subsequent Event \| $1.5 billion floating rate credit facility expiring August 11, 2022 (1) \| Carrying Value
Subsequent Event [Line Items]
Debt instrument, face amount					$ 1,500,000,000
Subsequent Event \| Forward contract
Subsequent Event [Line Items]
Immediate payment applied from collateral already paid		$ 192,300,000