Receivables, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Receivables, Net
Trade accounts receivable	$ 1,373	$ 1,304
Unbilled receivables	746	727
Less: Allowances for doubtful accounts	(12)	(9)
Net trade accounts receivable	2,107	2,022
Other receivables	487	538
Receivables, net	2,594	2,560
Net accounts receivable under long-term contracts, due primarily from agencies of the U.S. government and their prime contractors	282	278
Recognized sales value of performance not yet billable	$ 267	233
Average length of long-term contracts	2 years
Average remaining length of contracts	6 months
Net receivables expected to be collected within one year	$ 269
Maximum available sale of the accounts receivables under factoring program	2,040	1,740
Amount of accounts receivable available for sale under the factoring program	488	308
Factoring program expense included in statement of earnings	$ 67	$ 41	$ 29