v3.26.1
(LOSS) EARNINGS PER SHARE - Schedule of Basic and Diluted Net Loss Per Ordinary Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Numerator            
Net (loss) income $ (296) $ 209 $ 37 $ 335 $ (87) $ 372
Net (loss) income attributable to non-controlling interests and redeemable non-controlling interests (24)   12   (31) 15
Adjustment of redeemable non-controlling interest to redemption value 2   (80)   0 (31)
Net (loss) income attributable to Flutter shareholders (274)   105   (56) 388
Net (loss) income attributable to Flutter shareholders – diluted $ (274)   $ 105   $ (56) $ 388
Denominator            
Basic weighted average outstanding shares (in shares) 175   177   175 177
Effective of dilutive stock awards (in shares) 0   2   0 2
Diluted weighted average outstanding shares (in shares) 175   179   175 179
Earnings per share            
Basic (in USD per share) $ (1.57)   $ 0.59   $ (0.32) $ 2.19
Diluted (in USD per share) $ (1.57)   $ 0.59   $ (0.32) $ 2.17