Fair Value Measurements (Schedule of the Carrying Amount and Estimated Fair Value of the Company's Financial Instruments that are Recorded at Fair Value on a Recurring Basis) (Details) - Recurring [Member] - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	$ 10
Total financial liabilities		$ 24
Carrying Value [Member] | Other Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilites		9
Carrying Value [Member] | Other Long-Term Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilites		15
Carrying Value [Member] | Prepaid Expenses And Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Assets	4
Carrying Value [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Assets	6
Estimated Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	10
Total financial liabilities		24
Estimated Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilites		9
Estimated Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Long-Term Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilites		$ 15
Estimated Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Prepaid Expenses And Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Assets	4
Estimated Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Assets	$ 6