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Financial Instruments - Summary of Consolidated Debt by Type of Instrument (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items] |  |
Current maturities | $ (68) | $ (105)
Short- term | 68 | 105
Short-term debt | 73 | 179
Long- term | 7,306 | 9,160
Bank loans [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Short- term |  | 67
Long- term | 2,017 | 2,754
Bank loans [member] | Loans in Foreign Countries [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Short- term |  | 67
Long- term | 289 | 371
Bank loans [member] | Syndicated loans [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Long- term | 1,728 | 2,383
Notes payable [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Short- term | 5 | 7
Long- term | 5,357 | 6,511
Notes payable [member] | Medium term notes [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Long- term | 5,179 | 6,327
Notes payable [member] | Other Notes Payable [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Short- term | 5 | 7
Long- term | 178 | 184
Total bank loans and notes payables [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Short- term | 5 | 74
Long- term | $ 7,374 | $ 9,265
Bottom of range [member] | Bank loans [member] | Loans in Foreign Countries [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2023 | 2021
Bottom of range [member] | Bank loans [member] | Syndicated loans [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2023 | 2021
Bottom of range [member] | Notes payable [member] | Medium term notes [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2024 | 2024
Bottom of range [member] | Notes payable [member] | Other Notes Payable [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2022 | 2021
Top of range [member] | Bank loans [member] | Loans in Foreign Countries [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2024 | 2024
Top of range [member] | Bank loans [member] | Syndicated loans [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2026 | 2025
Top of range [member] | Notes payable [member] | Medium term notes [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2031 | 2030
Top of range [member] | Notes payable [member] | Other Notes Payable [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Debt instrument maturity period | 2027 | 2027

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- Definition The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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