Preferred Shares - Preferred Shares Issued and Outstanding (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2026	Sep. 30, 2026	Dec. 31, 2025
Preferred Shares [Line Items]
Securities issued (in shares)	1,600	1,600	1,600
Series E Preferred Stock
Preferred Shares [Line Items]
Securities issued (in shares)	1,600	1,600
Depositary shares issued (in shares)	1,600,000	1,600,000
Fixed dividend rate per annum (as a percent)	6.45%	6.45%
Floating dividend rate per annum (as a percent)		2.119%
Aggregate liquidation preference	$ 1,600	$ 1,600
Carrying value	$ 1,584	$ 1,584