Revenue from Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 2023

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
2023	$	2,363	$	11,666	$	14,029
2022		2,699		12,650		15,349
2021		2,459		11,352		13,811

Schedule of balances of contract liabilities

	Contract		Contract
	Liabilities		Liabilities
($ in millions)	(Current)		(Noncurrent)
Balance at December 31, 2021	$	272	$	38
Increase (decrease)		44		(26)
Balance at December 31, 2022		316		12
Increase (decrease)		21		(2)
Balance at December 31, 2023	$	337	$	10

Schedule of transaction price allocated to remaining performance obligations

($ in millions)	Next Twelve Months		Thereafter		Total
Sales expected to be recognized on multi-year contracts in place as of December 31, 2023	$	1,612	$	1,312	$	2,924