Revenue from Contracts With Customers (Tables)

3 Months Ended

Mar. 31, 2024

Revenue from Contracts with Customers

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

	($ in millions)
Three Months Ended March 31,	Point in Time		Over Time		Total
2024	$	556	$	2,318	$	2,874
2023		542		2,439		2,981

Schedule of balances of contract liabilities

	Contract		Contract
	Liabilities		Liabilities
($ in millions)	(Current)		(Noncurrent)
Balance at December 31, 2023	$	114	$	3
Increase (decrease)		(15)		(1)
Balance at March 31, 2024	$	99	$	2