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Financial Instruments - Summary of Disclosure Detail Of Financial Lease Liabilities (Detail) $ in Millions | Dec. 31, 2020 USD ($)
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Disclosure detail of financial lease liabilities [line items] |
Lease financial liabilities | $ 967
Less than 1 year [Member] |
Disclosure detail of financial lease liabilities [line items] |
Lease financial liabilities | 199
Later Than One Year and Not Later Than Two Years [Member] |
Disclosure detail of financial lease liabilities [line items] |
Lease financial liabilities | 162
Later Than Two Years and Not Later Than Three Years [Member] |
Disclosure detail of financial lease liabilities [line items] |
Lease financial liabilities | 127
Later Than Three Years and Not Later Than Four Years [Member] |
Disclosure detail of financial lease liabilities [line items] |
Lease financial liabilities | 95
More than 5 Years [member] |
Disclosure detail of financial lease liabilities [line items] |
Lease financial liabilities | $ 384

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- Definition Disclosure Detail Of Financial Lease Liabilities Line Items. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Lease financial liabilities due. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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- Details
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- Details
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- Details
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- Details
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