Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The fair value hierarchy for assets and liabilities measured at fair value on a recurring basis at June 30, 2018, and December 31, 2017, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)



	At June 30, 2018								At December 31, 2017
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	58	$	58	$	—	$	—	$	9	$	9	$	—	$	—
Derivatives	7		1		6		—		22		—		22		—
Total Assets at Fair Value	$	65	$	59	$	6	$	—	$	31	$	9	$	22	$	—
Derivatives	184		117		67		—		124		78		46		—
Total Liabilities at Fair Value	$	184	$	117	$	67	$	—	$	124	$	78	$	46	$	—

Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis

The fair value hierarchy for assets and liabilities measured at fair value on a nonrecurring basis at June 30, 2018, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)



	At June 30, 2018
									Before-Tax Loss
	Total		Level 1		Level 2		Level 3		Three Months Ended		Six Months Ended
	Total		Level 1		Level 2		Level 3		Three Months Ended		Six Months Ended
Properties, plant and equipment, net (held and used)	$	—	$	—	$	—	$	—	$	—	$	—
Properties, plant and equipment, net (held for sale)	88		—		88		—		134		297
Investments and advances	—		—		—		—		—		1
Total Assets at Fair Value	$	88	$	—	$	88	$	—	$	134	$	298