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Risks Arising from Financial Instruments - Summary of Notional Amounts of Derivatives Outstanding at Year-end by Maturity Bucket (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Less than 1 year [member] | Foreign exchange forwards [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | $ 13,440 | $ 11,445
Less than 1 year [member] | Foreign currency futures [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 245 | 503
Less than 1 year [member] | Interest rate swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 580 | 1,000
Less than 1 year [member] | Cross currency interest rate swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 1,217 | 900
Less than 1 year [member] | Aluminum swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 1,780 | 2,161
Less than 1 year [member] | Other commodity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 913 | 1,160
Less than 1 year [member] | Equity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 11,189 | 10,800
1-2 years [member] | Foreign exchange forwards [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 105 | 479
1-2 years [member] | Foreign currency futures [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
1-2 years [member] | Interest rate swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
1-2 years [member] | Cross currency interest rate swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 1,863 | 1,923
1-2 years [member] | Aluminum swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 4
1-2 years [member] | Other commodity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 25 | 22
1-2 years [member] | Equity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
2-3 years [member] | Foreign exchange forwards [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 300 | 0
2-3 years [member] | Foreign currency futures [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
2-3 years [member] | Interest rate swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
2-3 years [member] | Cross currency interest rate swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 510 | 1,834
2-3 years [member] | Aluminum swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
2-3 years [member] | Other commodity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
2-3 years [member] | Equity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
3-5 years [member] | Foreign exchange forwards [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
3-5 years [member] | Foreign currency futures [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
3-5 years [member] | Interest rate swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
3-5 years [member] | Cross currency interest rate swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 4,353 | 2,608
3-5 years [member] | Aluminum swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
3-5 years [member] | Other commodity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
3-5 years [member] | Equity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
Greater than 5 years [member] | Foreign exchange forwards [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
Greater than 5 years [member] | Foreign currency futures [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
Greater than 5 years [member] | Interest rate swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
Greater than 5 years [member] | Cross currency interest rate swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 717 | 560
Greater than 5 years [member] | Aluminum swaps [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
Greater than 5 years [member] | Other commodity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | 0 | 0
Greater than 5 years [member] | Equity derivatives [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Notional amount | $ 0 | $ 0

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