Provisions - Narrative (Details) $ in Millions	Dec. 31, 2020 USD ($)
Disclosure of other provisions [line items]
Provision for Termination Payment	$ 428

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.

No definition available.

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Balance Type:	na
Period Type:	duration