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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) (Parenthetical)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
6.375% Series D preferred stock
Preferred stock, dividend rate (as a percent)	6.375%	6.375%	6.375%	6.375%

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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Balance Type:
Period Type: