Income Taxes (Narrative) (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2021	Dec. 31, 2021	Dec. 31, 2022
Income Tax Contingency [Line Items]
Income Taxes Receivable, Current			$ 18
Income Taxes Receivable, Noncurrent			13
Income taxes paid	$ 9	$ 28	8
Valuation allowance		$ 92	141
Gross tax liability for tax positions that may not be sustained under a more likely than not threshold			$ 5
Research Tax Credit Carryforward [Member]
Income Tax Contingency [Line Items]
Tax credit expiration year			2041
Research and development credits			$ 9
Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
Operating loss carryforward			156
Internal Revenue Service (IRS) [Member] | Indefinite Tax Period [Member]
Income Tax Contingency [Line Items]
Operating loss carryforward			$ 71
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Tax credit expiration year			2026
Various tax credits			$ 12
State and Local Jurisdiction [Member] | State Net Operating Loss Carryforward [Member]
Income Tax Contingency [Line Items]
Operating loss carryforward			$ 2,400
Tax credit expiration year			2042
Minimum [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
Tax credit expiration year			2036
Maximum [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
Tax credit expiration year			2037