The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 98
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_98_b&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_ExpenseOfRestructuringActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Restructuring costs (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring programmes
Restructuring charges			$ 226	$ 187
Total restructuring charges	$ 123	$ 92	226	187
Cost of sales
Restructuring programmes
Restructuring charges	14	23	52	55
Research and development expense
Restructuring programmes
Restructuring charges	30	31	64	58
Selling, general and administrative costs
Restructuring programmes
Restructuring charges	$ 79	48	$ 110	84
Other operating income and expense
Restructuring programmes
Reversal of provisions for cost of restructuring		$ (10)		$ (10)