Revenue from Contracts With Customers (Tables)

3 Months Ended

Mar. 31, 2025

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
2025	$	544	$	2,553	$	3,097
2024		556		2,318		2,874

Schedule of balances of contract liabilities

	Contract		Contract
	Liabilities		Liabilities
($ in millions)	(Current)		(Noncurrent)
Balance at December 31, 2024	$	50	$	2
Increase (decrease)		13		—
Balance at March 31, 2025	$	63	$	2