Derivatives and Hedging Activities and Fair Value Measurement - Fair Value of Financial Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Total Assets	$ 36	$ 26
Total Liabilities	1	2
Long-term debt	1,643	1,682
Long Term Debt Due Within One Year
Derivative [Line Items]
Long-term debt	7	259
Currency Derivatives [Member] | Prepaid Expenses
Derivative [Line Items]
Total Assets	17	18
Currency Derivatives [Member] | Trade and Other Payables [Member]
Derivative [Line Items]
Total Liabilities	1	1
Currency Derivatives [Member] | Other Liabilities and Deferred Credits [Member]
Derivative [Line Items]
Total Liabilities		1
Significant Observable Inputs (Level 2) [Member]
Derivative [Line Items]
Total Assets	36	26
Total Liabilities	1	2
Long-term debt	1,643	1,682
Significant Observable Inputs (Level 2) [Member] | Long Term Debt Due Within One Year
Derivative [Line Items]
Long-term debt	7	259
Significant Observable Inputs (Level 2) [Member] | Currency Derivatives [Member] | Prepaid Expenses
Derivative [Line Items]
Total Assets	17	18
Significant Observable Inputs (Level 2) [Member] | Currency Derivatives [Member] | Trade and Other Payables [Member]
Derivative [Line Items]
Total Liabilities	1	1
Significant Observable Inputs (Level 2) [Member] | Currency Derivatives [Member] | Other Liabilities and Deferred Credits [Member]
Derivative [Line Items]
Total Liabilities		1
Natural Gas Swap Contracts | Prepaid Expenses
Derivative [Line Items]
Total Assets	16	6
Natural Gas Swap Contracts | Other Assets
Derivative [Line Items]
Total Assets	3	2
Natural Gas Swap Contracts | Significant Observable Inputs (Level 2) [Member] | Prepaid Expenses
Derivative [Line Items]
Total Assets	16	6
Natural Gas Swap Contracts | Significant Observable Inputs (Level 2) [Member] | Other Assets
Derivative [Line Items]
Total Assets	$ 3	$ 2