Revenue from Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 2024

Revenue from Contracts with Customers

Schedule of the disaggregation of revenue by timing of transfer of control

	($ in millions)
Year Ended December 31,	Point in Time		Over Time		Total
2024	$	2,454	$	9,341	$	11,795
2023		2,352		9,710		12,062
2022		2,691		10,681		13,372

Schedule of balances of contract liabilities

	Contract		Contract
	Liabilities		Liabilities
($ in millions)	(Current)		(Noncurrent)
Balance at December 31, 2022	$	49	$	2
Increase (decrease)		65		1
Balance at December 31, 2023		114		3
Increase (decrease)		(64)		(1)
Balance at December 31, 2024	$	50	$	2