XML 137 R119.htm IDEA: XBRL DOCUMENT v3.24.0.1
Goodwill - After-Tax Discount Rates Applied to the Cash Flow Projections (Details)
Dec. 31, 2023
Dec. 31, 2022
Telefónica Spain    
Disclosure of detailed information about intangible assets [line items]    
Before-tax discount rates applied to cash flow projections (as a percent) 9.10% 9.00%
After-tax discount rates applied to cash flow projections (as a percent) 7.00% 6.90%
Telefónica Brazil    
Disclosure of detailed information about intangible assets [line items]    
Before-tax discount rates applied to cash flow projections (as a percent) 14.80% 16.40%
After-tax discount rates applied to cash flow projections (as a percent) 12.00% 12.60%
Telefónica Germany    
Disclosure of detailed information about intangible assets [line items]    
Before-tax discount rates applied to cash flow projections (as a percent) 8.40% 8.00%
After-tax discount rates applied to cash flow projections (as a percent) 5.80% 5.70%