Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

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 September 30, 2014, and December 31, 2013, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)

	At September 30, 2014								At December 31, 2013
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	267	$	267	$	—	$	—	$	263	$	263	$	—	$	—
Derivatives	70		64		6		—		28		—		28		—
Total Assets at Fair Value	$	337	$	331	$	6	$	—	$	291	$	263	$	28	$	—
Derivatives	34		32		2		—		89		80		9		—
Total Liabilities at Fair Value	$	34	$	32	$	2	$	—	$	89	$	80	$	9	$	—

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 September 30, 2014, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)

	At September 30, 2014
	Total		Level 1		Level 2		Level 3		Before-Tax Loss
									Three Months Ended		Nine Months Ended
Properties, plant and equipment, net (held and used)	$	6	$	—	$	—	$	6	$	2	$	538
Properties, plant and equipment, net (held for sale)	—		—		—		—		—		—
Investments and advances	—		—		—		—		2		33
Total Assets at Fair Value	$	6	$	—	$	—	$	6	$	4	$	571