Income Taxes - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021
Income Tax Examination [Line Items]
Deferred tax benefit		$ 7,000,000
Unrecognized tax benefits	$ 0	0
Australia
Income Tax Examination [Line Items]
Deferred tax benefit	16,000,000	278,000,000
Deferred tax assets, valuation allowance	$ 475,000,000	$ 475,000,000
U.K.
Income Tax Examination [Line Items]
Statutory tax rate		19.00%	19.00%