v3.26.1
Cover
 12 Months Ended
Dec. 31, 2025
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name BP PLC
Amendment Flag false
Entity Central Index Key 0000313807
BP Employee Savings Plan (Plan No. 001)  
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name BP PLC
Amendment Flag false
Entity Central Index Key 0000313807
BP Partnership Savings Plan (Plan No. 051)  
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name BP PLC
Amendment Flag false
Entity Central Index Key 0000313807
BP DirectSave Plan (Plan No. 052)  
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name BP PLC
Amendment Flag false
Entity Central Index Key 0000313807
BPX Energy Employee Savings Plan (Plan No. 100)  
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name BP PLC
Amendment Flag false
Entity Central Index Key 0000313807
Archaea Employee Savings Plan (Plan No. 101)  
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name BP PLC
Amendment Flag false
Entity Central Index Key 0000313807