Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

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 March 31, 2020, and December 31, 2019, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)

	At March 31, 2020								At December 31, 2019
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	50	$	50	$	—	$	—	$	63	$	63	$	—	$	—
Derivatives	502		366		136		—		11		1		10		—
Total Assets at Fair Value	$	552	$	416	$	136	$	—	$	74	$	64	$	10	$	—
Derivatives	32		12		20		—		74		26		48		—
Total Liabilities at Fair Value	$	32	$	12	$	20	$	—	$	74	$	26	$	48	$	—

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, 2020, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)

	At March 31, 2020
									Before-Tax Loss
	Total		Level 1		Level 2		Level 3
Properties, plant and equipment, net (held and used)	$	—	$	—	$	—	$	—	$	—
Properties, plant and equipment, net (held for sale)	738		—		738		—		74
Investments and advances	—		—		—		—		—
Total Assets at Fair Value	$	738	$	—	$	738	$	—	$	74