Segment Information Capital Expenditures and Depreciation and Amortization (Details 7) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Additional information by Segment (Table Amounts) [Abstract]
Capital Expenditures	$ 1,435	$ 1,415	$ 1,420
Depreciation and amortization	1,342	1,239	1,267
Aeronautics Systems
Additional information by Segment (Table Amounts) [Abstract]
Capital Expenditures	490	465	540
Depreciation and amortization	322	266	282
Defense Systems
Additional information by Segment (Table Amounts) [Abstract]
Capital Expenditures	110	133	78
Depreciation and amortization	101	91	108
Mission Systems
Additional information by Segment (Table Amounts) [Abstract]
Capital Expenditures	248	236	302
Depreciation and amortization	242	233	209
Space Systems
Additional information by Segment (Table Amounts) [Abstract]
Capital Expenditures	529	530	440
Depreciation and amortization	396	344	291
Corporate
Additional information by Segment (Table Amounts) [Abstract]
Capital Expenditures	58	51	60
Depreciation and amortization	$ 281	$ 305	$ 377