Cash flow

USD million	2013	2014	2015	2016	2017	2018
Net cash provided from operating activities	1,333	1,806	1,622	1,699	1,899	2,741
Net cash used in investing activities	-1,016	-946	-1,375	-310	-758	+290
Purchases and construction of property, plant and equipment	-756	-563	-595	-559	-592	-680
Net cash used in financing activities	-224	-1,147	-377	-1,120	-1,459	-2,119
Net increase / (decrease) in cash and cash equivalents	94	-284	-130	269	-318	+912