Tax Treatment of Distributions - Dividends (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Dividends declared per share of common stock (dollars per share)	$ 2.12	$ 2.04	$ 1.97
Common Stock
Class of Stock [Line Items]
Dividends declared per share of common stock (dollars per share)	2.120	2.040	1.970
Less: Dividends declared in the current year and paid in the following year (dollars per share)	(0.540)	(0.520)	(0.500)
Add: Dividends declared in the prior year and paid in the current year (dollars per share)	0.520	0.500	0.485
Dividends paid per share of common stock (dollars per share)	$ 2.100	$ 2.020	$ 1.955