Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2024, and December 31, 2023, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)

	At March 31, 2024								At December 31, 2023
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	—	$	—	$	—	$	—	$	45	$	45	$	—	$	—
Derivatives - not designated	80		75		5		—		152		24		128		—
Derivatives - designated	—		—		—		—		7		7		—		—
Total Assets at Fair Value	$	80	$	75	$	5	$	—	$	204	$	76	$	128	$	—
Derivatives - not designated	286		6		280		—		262		160		102		—
Derivatives - designated	34		34		—		—		—		—		—		—
Total Liabilities at Fair Value	$	320	$	40	$	280	$	—	$	262	$	160	$	102	$	—