Changes in the Group structure - Major business combinations, Anadarko Mozambique (Details) - Anadarko Mozambique - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2019
Major business combinations
Percentage of share capital acquired	100.00%
Purchase price	$ 4,426
Goodwill	136	$ 136
Purchase price allocation
Goodwill	136	$ 136
Intangible assets	3,751
Tangible assets	767
Other assets and liabilities	(309)
Acquired cash	81
Fair value of consideration	$ 4,426
Mozambique LNG project
Major business combinations
Proportion of ownership interest in joint operation	26.50%

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for cash and cash equivalents acquired in a business combination. [Refer: Cash and cash equivalents; Business combinations [member]]

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The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

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