Profit Or Loss [Abstract]

BAE Systems PLC - Filing #2001215

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	2 3,07 8 GBP	—	—	—	—	—	—	—	—	—	—	21, 2 5 8 GBP	—	—	—	—	—
Other income	—	204,000,000 GBP	—	—	—	—	—	—	—	—	—	—	2 15 GBP	—	—	—	—	—
Profit (loss) from operating activities	—	2 ,573 GBP	—	—	—	—	—	—	—	—	—	—	2, 38 4 GBP	—	—	—	—	—
Finance income	—	17 2 GBP	—	—	—	—	—	—	—	—	—	—	47,000,000 GBP	—	—	—	—	—
Finance costs	—	41 9 GBP	—	—	—	—	—	—	—	—	—	—	4 42 GBP	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	20 8 GBP	—	—	—	—	—	—	—	—	—	—	18 0 GBP	—	—	—	—	—
Profit (loss) before tax	—	2, 326 GBP	—	—	—	—	—	—	—	—	—	—	1, 9 8 9 GBP	—	—	—	—	—
Tax expense (income)	—	38 6 GBP	—	—	—	—	—	—	—	—	—	—	3 15 GBP	—	—	—	—	—
Profit (loss)	– GBP	1,9 4 0 GBP	83,000,000 GBP	1, 85 7 GBP	– GBP	– GBP	1,8 57 GBP	1, 9 4 0 GBP	– GBP	– GBP	1, 5 91 GBP	– GBP	1, 6 74 GBP	– GBP	1, 5 91 GBP	83,000,000 GBP	– GBP	1 , 6 74 GBP
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	1, 85 7 GBP	—	—	—	—	—	—	—	—	—	—	1, 59 1 GBP	—	—	—	—	—
Profit (loss), attributable to non-controlling interests	—	83,000,000 GBP	—	—	—	—	—	—	—	—	—	—	83,000,000 GBP	—	—	—	—	—
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	—	61. 3	—	—	—	—	—	—	—	—	—	—	51 .1	—	—	—	—	—
Diluted earnings per share [abstract]
Diluted earnings (loss) per share	—	0.604	—	—	—	—	—	—	—	—	—	—	50 .5	—	—	—	—	—