CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands, shares in Millions	Mar. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Trading investments, cost	$ 40,270	$ 41,715
Available-for sale investments at fair value, cost	1,747,064	2,042,473
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	$ 1,443,715	$ 1,435,920
Preferred stock, par or stated value (in dollars per share)	$ 0.20	$ 0.20
Preferred stock, shares authorized (in shares)	20.0	20.0
Preferred stock, shares issued (in shares)	2.5	2.5
Preferred stock, liquidation preference (in dollars per share)	$ 100	$ 100
Common stock, par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, shares authorized (in shares)	1,125.0	1,125.0
Common stock, shares issued (in shares)	442.8	440.6
Tax benefit on accumulated other comprehensive loss	$ 18,080	$ 21,209
Common stock held in treasury (in shares)	232.1	230.2