XML 428 R143.htm IDEA: XBRL DOCUMENT v3.22.0.1
Intangible assets - Assumptions (Details) - GBP (£)
£ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of information for cash-generating units    
Goodwill £ 5,522 £ 5,607
Forecast period for average cost:income ratio 5 years  
Commercial Banking    
Disclosure of information for cash-generating units    
Goodwill £ 2,606 £ 2,606
Terminal growth rate 1.60% 1.60%
Pre-tax discount rate 13.90% 13.70%
Cost Income Ratio 52.30% 53.70%
Recoverable amount exceeded carrying value £ 6,300 £ 1,500
Commercial Banking | 1% adverse movement in discount rate    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (1,900) (1,500)
Commercial Banking | 1% adverse movement in terminal growth rate    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (800) (500)
Commercial Banking | 5% adverse movement in forecast income    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (2,000) (1,800)
Commercial Banking | 5% adverse movement in forecast cost    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (1,000) (900)
Retail Banking    
Disclosure of information for cash-generating units    
Goodwill £ 2,607 £ 2,692
Terminal growth rate 1.60% 1.60%
Pre-tax discount rate 13.90% 13.70%
Cost Income Ratio 51.60% 48.30%
Recoverable amount exceeded carrying value £ 6,800 £ 5,900
Retail Banking | 1% adverse movement in discount rate    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (1,800) (1,800)
Retail Banking | 1% adverse movement in terminal growth rate    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (800) (800)
Retail Banking | 5% adverse movement in forecast income    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (2,100) (2,000)
Retail Banking | 5% adverse movement in forecast cost    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (1,000) (900)
RBS International    
Disclosure of information for cash-generating units    
Goodwill £ 300 £ 300
Terminal growth rate 1.60% 1.60%
Pre-tax discount rate 12.10% 12.10%
Cost Income Ratio 37.00% 42.70%
Recoverable amount exceeded carrying value £ 2,600 £ 1,100
RBS International | 1% adverse movement in discount rate    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (600) (400)
RBS International | 1% adverse movement in terminal growth rate    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (300) (200)
RBS International | 5% adverse movement in forecast income    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement (400) (300)
RBS International | 5% adverse movement in forecast cost    
Disclosure of information for cash-generating units    
Decrease in recoverable amount of goodwill as a consequence of adverse movement £ (100) £ (100)