Equity (Preferred Stock - Authorized, Issued and Outstanding) (Details) - $ / shares	Dec. 31, 2024	Dec. 02, 2024	Dec. 31, 2023	Nov. 01, 2023	Nov. 01, 2022
Preferred stock authorized (shares)	20,000,000		20,000,000
Preferred stock issued (shares)	58,000		63,000
Preferred stock outstanding (shares)	58,000		63,000
Common stock held in treasury at cost (shares)	147,373,633		145,087,054
Series B
Preferred stock, liquidation preference per share (in USD per share)	$ 40
Preferred stock issued (shares)	1,000		1,000
Preferred stock outstanding (shares)	1,000		1,000
Series R
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock issued (shares)			5,000
Preferred stock outstanding (shares)			5,000
Treasury stock, preferred (shares)	5,000	5,000
Series S
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock issued (shares)	5,000		5,000
Preferred stock outstanding (shares)	5,000		5,000
Series T
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock issued (shares)	15,000		15,000
Preferred stock outstanding (shares)	15,000		15,000
Series U
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock issued (shares)	10,000		10,000
Preferred stock outstanding (shares)	10,000		10,000
Series V
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock issued (shares)	12,000		12,000
Preferred stock outstanding (shares)	12,000		12,000
Series W
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock issued (shares)	15,000		15,000
Preferred stock outstanding (shares)	15,000		15,000
Depositary Shares
Common stock held in treasury at cost (shares)	500,000	500,000		1,000,000	60,000,000