Common Equity - Common Stock Dividends (Details) - $ / shares						12 Months Ended
	Jan. 18, 2024	Oct. 19, 2023	Jul. 20, 2023	Apr. 20, 2023	Jan. 19, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Dividends Paid and Payable
Dividends per share (in dollars per share)		$ 0.78	$ 0.78	$ 0.78	$ 0.78	$ 3.12	$ 2.91	$ 2.71
Subsequent event
Dividends Paid and Payable
Dividends per share (in dollars per share)	$ 0.835
Annualized dividend (in dollars per share)	$ 3.34
Subsequent event | Minimum
Dividends Paid and Payable
Target dividend payout ratio (as a percent)	65.00%
Subsequent event | Maximum
Dividends Paid and Payable
Target dividend payout ratio (as a percent)	70.00%