Income Taxes - Narrative (Details) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2024 EUR (€)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Income Taxes [Line Items]
Income tax expense (benefit)	$ (6)		$ 1
Loss before Income Taxes	52		100
Unrecognized Tax Benefits	0
Net discrete tax adjustments	$ 1		$ 1
Minimum effective corporate tax rate	15.00%	15.00%
U.S. statutory rate	21.00%	21.00%	21.00%
Corporate average revenue excess amount | €		€ 750
Corporate alternative minimum tax	15.00%	15.00%
U.S.
Income Taxes [Line Items]
Net deferred tax assets, unlimited lives	$ 1,100			$ 1,000
Net deferred tax assets, limited lives	200			200
Deferred tax asset, tax credit carryforwards, foreign	22			22
Foreign Tax Authority
Income Taxes [Line Items]
Net deferred tax assets	1,500			1,500
Valuation allowance	1,200			1,200
Foreign Tax Authority | Luxembourg
Income Taxes [Line Items]
Valuation allowance	1,000
State And Local Authority
Income Taxes [Line Items]
Valuation allowance	22			22
Domestic and State and Local Authority
Income Taxes [Line Items]
Net deferred tax assets	$ 1,300			$ 1,200