Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

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 March 31, 2015, and December 31, 2014, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)



	At March 31, 2015								At December 31, 2014
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	432	$	432	$	—	$	—	$	422	$	422	$	—	$	—
Derivatives	107		75		30		2		413		394		19		—
Total Assets at Fair Value	$	539	$	507	$	30	$	2	$	835	$	816	$	19	$	—
Derivatives	104		72		32		—		84		83		1		—
Total Liabilities at Fair Value	$	104	$	72	$	32	$	—	$	84	$	83	$	1	$	—

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 March 31, 2015, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)



	At March 31, 2015
	Total		Level 1		Level 2		Level 3		Before-Tax Loss
Properties, plant and equipment, net (held and used)	$	195	$	—	$	190	$	5	$	259
Investments and advances	—		—		—		—		1
Total Assets at Fair Value	$	195	$	—	$	190	$	5	$	260