Income Taxes - Net Operating Losses (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Operating loss carryforwards
Net operating loss	$ 74	$ 63
Valuation allowance	65	$ 65
State
Operating loss carryforwards
Net operating loss	30
Valuation allowance, net operating losses	29
Valuation allowance	2
Foreign
Operating loss carryforwards
Net operating loss	44
Valuation allowance	$ 34