Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2024

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 at June 30, 2024, and December 31, 2023, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	At June 30, 2024								At December 31, 2023
	(Millions of dollars)
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	—	$	—	$	—	$	—	$	45	$	45	$	—	$	—
Derivatives - not designated	83		63		20		—		152		24		128		—
Derivatives - designated	—		—		—		—		7		7		—		—
Total Assets at Fair Value	$	83	$	63	$	20	$	—	$	204	$	76	$	128	$	—
Derivatives - not designated	156		32		124		—		262		160		102		—
Derivatives - designated	17		17		—		—		—		—		—		—
Total Liabilities at Fair Value	$	173	$	49	$	124	$	—	$	262	$	160	$	102	$	—