Property, Plant And Equipment And Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant And Equipment And Asset Retirement Obligations [Abstract]

Property, Plant And Equipment

		December 31, 2018		December 31, 2017
Property, Plant and Equipment		Cost	Net	Cost	Net
		(millions of dollars)
Upstream		372,791	194,662	371,904	200,291
Downstream		48,241	21,448	50,343	21,732
Chemical		39,008	20,551	37,966	20,117
Other		17,150	10,440	16,972	10,490
	Total	477,190	247,101	477,185	252,630

Asset Retirement Obligations

		2018	2017
		(millions of dollars)
Beginning balance		12,705	13,243
	Accretion expense and other provisions	681	780
	Reduction due to property sales	(333)	(906)
	Payments made	(600)	(730)
	Liabilities incurred	46	128
	Foreign currency translation	(481)	611
	Revisions	85	(421)
Ending balance		12,103	12,705