Series A Convertible Preferred Stock (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($) $ / shares Rate shares	Sep. 30, 2023 USD ($) $ / shares Rate shares	Oct. 16, 2023	Dec. 31, 2022 shares
Subsequent Event
Class of Stock [Line Items]
Preferred stock, convertible, conversion ratio			57.5601
Series A Convertible Preferred Stock
Class of Stock [Line Items]
Dividend rate | Rate	5.50%	5.50%
Dividend rate for preferred shares; accrued but unpaid dividend	8.00%	8.00%
Cash dividends paid | $	$ 3	$ 11
Conversion price per share at option of holder (in dollars per share) | $ / shares	$ 30.00	$ 30.00
Conversion rate per preferred share		33.333
Financial instruments subject to redemption, settlement terms, maximum number of shares (in shares) | shares	9.2	9.2		9.2