Additional Working Capital Information (Tables)

12 Months Ended

Dec. 31, 2018

Additional Working Capital Information [Abstract]

Schedule Of Notes, Accounts Receivable And Payable, Loans Payable, And Accrued Liabilities

			Dec. 31	Dec. 31
			2018	2017
			(millions of dollars)
Notes and accounts receivable
	Trade, less reserves of $61 million and $72 million		19,638	21,274
	Other, less reserves of $339 million and $539 million		5,063	4,323
		Total	24,701	25,597
Notes and loans payable
	Bank loans		325	115
	Commercial paper		12,863	13,049
	Long-term debt due within one year		4,070	4,766
		Total	17,258	17,930
Accounts payable and accrued liabilities
	Trade payables		21,063	21,701
	Payables to equity companies		6,863	5,453
	Accrued taxes other than income taxes		3,280	3,311
	Other		6,062	6,331
		Total	37,268	36,796