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v3.19.3.a.u2

Right-of-use assets and Lease liabilities - Future Minimum Operating Lease Payable (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Disclosure of maturity analysis of operating lease payments [line items] |
Total operational lease commitments | $ 222
Not later than one year [member] |
Disclosure of maturity analysis of operating lease payments [line items] |
Total operational lease commitments | 50
Between one and five years [member] |
Disclosure of maturity analysis of operating lease payments [line items] |
Total operational lease commitments | 135
Later than five years [member] |
Disclosure of maturity analysis of operating lease payments [line items] |
Total operational lease commitments | $ 37

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- Definition Minimum Lease Payments Payable Under Non-cancellable Operating Lease + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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