v3.26.1
Other comprehensive income (loss) - Components (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Pre-tax amount        
Total other comprehensive income (loss), Pre-tax amount $ 91 $ 461 $ (452) $ 1,024
Tax (expense) benefit        
Total other comprehensive income (loss), Tax (expense) benefit (50) 111 31 92
After-tax amount        
Total other comprehensive income (loss), net of tax [1] 41 572 (421) 1,116
Foreign currency translation        
Pre-tax amount        
Other comprehensive income (loss), Pre-tax amount (20) 272 (65) 390
Total other comprehensive income (loss), Pre-tax amount (20) 272 (65) 390
Tax (expense) benefit        
Other comprehensive income (loss), Tax (expense) benefit (20) 159 (63) 248
Total other comprehensive income (loss), Tax (expense) benefit (20) 159 (63) 248
After-tax amount        
Other comprehensive income (loss), After-tax amount (40) 431 (128) 638
Total other comprehensive income (loss), net of tax (40) 431 (128) 638
Unrealized (loss) on assets available-for-sale        
Pre-tax amount        
Other comprehensive income (loss), Pre-tax amount 64 153 (477) 593
Reclassification adjustment, Pre-tax amount 25 35 75 35
Total other comprehensive income (loss), Pre-tax amount 89 188 (402) 628
Tax (expense) benefit        
Other comprehensive income (loss), Tax (expense) benefit (18) (39) 117 (146)
Reclassification adjustment, Tax (expense) benefit (6) (10) (19) (10)
Total other comprehensive income (loss), Tax (expense) benefit (24) (49) 98 (156)
After-tax amount        
Other comprehensive income (loss), After-tax amount 46 114 (360) 447
Reclassification adjustment, After-tax amount 19 25 56 25
Total other comprehensive income (loss), net of tax 65 139 (304) 472
Defined benefit plans        
Pre-tax amount        
Total other comprehensive income (loss), Pre-tax amount 14 7 32 8
Tax (expense) benefit        
Total other comprehensive income (loss), Tax (expense) benefit (4) (1) (8) (1)
After-tax amount        
Total other comprehensive income (loss), net of tax 10 6 24 7
Net (loss) arising during the period        
Pre-tax amount        
Other comprehensive income (loss), Pre-tax amount     2 (7)
Tax (expense) benefit        
Other comprehensive income (loss), Tax (expense) benefit     0 2
After-tax amount        
Other comprehensive income (loss), After-tax amount     2 (5)
Foreign exchange adjustment        
Pre-tax amount        
Other comprehensive income (loss), Pre-tax amount     1 0
Tax (expense) benefit        
Other comprehensive income (loss), Tax (expense) benefit     0 0
After-tax amount        
Other comprehensive income (loss), After-tax amount     1 0
Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost        
Pre-tax amount        
Reclassification adjustment, Pre-tax amount 14 7 29 15
Tax (expense) benefit        
Reclassification adjustment, Tax (expense) benefit (4) (1) (8) (3)
After-tax amount        
Reclassification adjustment, After-tax amount 10 6 21 12
Unrealized gain (loss) on cash flow hedges        
Pre-tax amount        
Other comprehensive income (loss), Pre-tax amount (3) (7) (34) (6)
Reclassification adjustment, Pre-tax amount 11 1 17 4
Total other comprehensive income (loss), Pre-tax amount 8 (6) (17) (2)
Tax (expense) benefit        
Other comprehensive income (loss), Tax (expense) benefit 1 2 8 2
Reclassification adjustment, Tax (expense) benefit (3) 0 (4) (1)
Total other comprehensive income (loss), Tax (expense) benefit (2) 2 4 1
After-tax amount        
Other comprehensive income (loss), After-tax amount (2) (5) (26) (4)
Reclassification adjustment, After-tax amount 8 1 13 3
Total other comprehensive income (loss), net of tax 6 (4) (13) (1)
Unrealized gain (loss) on cash flow hedges | Income Statement Location [Axis]: us-gaap:InterestExpenseOperating        
Pre-tax amount        
Reclassification adjustment, Pre-tax amount (1) 0    
Tax (expense) benefit        
Reclassification adjustment, Tax (expense) benefit 0 0    
After-tax amount        
Reclassification adjustment, After-tax amount (1) 0    
Unrealized gain (loss) on cash flow hedges | Income Statement Location [Axis]: us-gaap:LaborAndRelatedExpense        
Pre-tax amount        
Reclassification adjustment, Pre-tax amount 9 0 12 4
Tax (expense) benefit        
Reclassification adjustment, Tax (expense) benefit (2) 0 (3) (1)
After-tax amount        
Reclassification adjustment, After-tax amount 7 0 9 3
Unrealized gain (loss) on cash flow hedges | Income Statement Location [Axis]: bk:InvestmentAndOtherIncome        
Pre-tax amount        
Reclassification adjustment, Pre-tax amount 3 1 5 0
Tax (expense) benefit        
Reclassification adjustment, Tax (expense) benefit (1) 0 (1) 0
After-tax amount        
Reclassification adjustment, After-tax amount $ 2 $ 1 $ 4 $ 0
[1] Other comprehensive income (loss) attributable to The Bank of New York Mellon Corporation shareholders was $41 million for the quarter ended June 30, 2026, $566 million for the quarter ended June 30, 2025, $(420) million for the six months ended June 30, 2026 and $1,107 million for the six months ended June 30, 2025.