Disposals and impairment (Tables)

12 Months Ended

Dec. 31, 2019

Impairment Of Assets [Abstract]

Summary of amounts recognized in the income statement in respect of disposals and impairments

The following amounts were recognized in the income statement in respect of disposals and impairments.

					$ million
	2019		2018		2017
Gains on sale of businesses and fixed assets
Upstream	143		437		526
Downstream	50		15		674
Other businesses and corporate	—		4		10
	193		456		1,210
					$ million
	2019		2018		2017
Losses on sale of businesses and fixed assets
Upstream	415		707		127
Downstream	57		59		88
Other businesses and corporate	887		11		—
	1,359		777		215
Impairment losses
Upstream	6,752		400		1,138
Downstream	65		12		69
Other businesses and corporate	30		254		32
	6,847		666		1,239
Impairment reversals
Upstream	(131	)	(580	)	(176	)
Downstream	—		(2	)	(62	)
Other businesses and corporate	—		(1	)	—
	(131	)	(583	)	(238	)
Impairment and losses on sale of businesses and fixed assets	8,075		860		1,216

Summary of disposal proceeds and principal gains and losses on disposals by segment

Disposal proceeds and principal gains and losses on disposals by segment are described below.

			$ million
	2019	2018	2017
Proceeds from disposals of fixed assets	500	940	2,936
Proceeds from disposals of businesses, net of cash disposed	1,701	1,911	478
	2,201	2,851	3,414
By business
Upstream	2,048	2,145	1,183
Downstream	152	120	2,078
Other businesses and corporate	1	586	153
	2,201	2,851	3,414

Summary financial information relating to the sale of business

Summarized financial information relating to the sale of businesses is shown in the table below.

The principal transaction categorized as a business disposal in 2019 was the sale of our interests in the Gulf of Suez oil concessions in Egypt.

The principal transaction categorized as a business disposal in 2018 was the disposal of our interest in the Greater Kuparuk Area in the US - see Note 3 for further information.

The principal transaction categorized as a business disposal in 2017 was the disposal of our interest in the Forties Pipeline System in the North Sea.

					$ million
	2019		2018		2017
Non-current assets	1,653		3,274		735
Current assets	507		173		57
Non-current liabilities	(257	)	(250	)	(173	)
Current liabilities	(108	)	(97	)	(86	)
Total carrying amount of net assets disposed	1,795		3,100		533
Recycling of foreign exchange on disposal	880		—		—
Costs on disposal	190		3		3
	2,865		3,103		536
Gains (losses) on sale of businesses	(1,190	)	(221	)	44
Total consideration	1,675		2,882		580
Non-cash consideration	(938	)	(282	)	(216	)
Consideration received (receivable)a	964		(689	)	114
Proceeds from the sale of businesses, net of cash disposedb	1,701		1,911		478

^a$633 million relates to deposits received in advance of the disposal of our Alaska business and certain assets in our BPX business

^b Proceeds are stated net of cash and cash equivalents disposed of $30 million (2018$15 million and 2017$25 million).