Investments in Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]
Carrying amount of investments	$ 42	$ 42
Assets	2,819	2,736
Liabilities	$ 2,136	2,058
Variable Interest Entity, Primary Beneficiary
Debt and Equity Securities, FV-NI [Line Items]
Equity ownership percentage	70.00%
Assets	$ 144	178
Liabilities	$ 87	$ 82