Consolidated Balance Sheets (Parentheticals) - USD ($) $ / shares in Thousands, $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Series A Perpetual Preferred Stock, par value (in dollars per share)	$ 0	$ 0
Temporary Equity, Shares Authorized (in shares)	1,500,000	1,500,000
Temporary Equity, Shares Issued (in shares)	650,000	650,000
Temporary Equity, Shares Outstanding (in shares)	650,000	650,000
Series A Perpetual Preferred Stock, liquidation value	$ 650	$ 650
Common Stock, Shares Authorized (in shares)	200,000,000	200,000,000
Common Stock (No Par Value) [Member]
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued (in shares)	113,779,383	111,166,022
Common stock, shares outstanding (in shares)	92,444,984	90,768,247
Treasury stock, shares (in shares)	21,334,399	20,397,775
Class A Common Stock (No Par Value) [Member]
Common stock, par value (in dollars per share)	$ 0	$ 0
Common Stock, Shares Authorized (in shares)	25,000,000	25,000,000
Common stock, shares issued (in shares)	12,198,808	11,237,386
Common stock, shares outstanding (in shares)	9,557,830	8,814,187
Treasury stock, shares (in shares)	2,640,978	2,423,199