Fair Value of Financial Instruments (Unaudited) (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Fair value information of assets and liabilities measured at fair value on a recurring basis

The following table presents the financial assets and liabilities the company records at fair value on a recurring basis identified by the level of inputs used to determine fair value:

	September 30, 2023								December 31, 2022
$ in millions	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Financial Assets
Marketable securities	$	301	$	—	$	8	$	309	$	310	$	1	$	8	$	319
Marketable securities valued using NAV							9								13
Total marketable securities	301		—		8		318		310		1		8		332
Derivatives	—		1		—		1		—		7		—		7