v3.25.4
Accumulated Other Comprehensive Income/Loss (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Net year-to-date other comprehensive income/(loss), taxes $ (24) $ 6 $ 31
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 16,890 14,788 12,163
Other comprehensive income/(loss) before reclassifications 64 (93)  
Amounts reclassified from accumulated other comprehensive income/(loss) 68 (16)  
Total other comprehensive income/(loss) [1] 132 (109) (32)
Ending balance 18,467 16,890 14,788
Total      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance [2] (723) (614) (582)
Total other comprehensive income/(loss) [2] 132 (109) (32)
Ending balance [2] (591) (723) (614)
Defined benefit plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (498) (484)  
Other comprehensive income/(loss) before reclassifications 2 2  
Amounts reclassified from accumulated other comprehensive income/(loss) 69 (16)  
Total other comprehensive income/(loss) 71 (14)  
Ending balance (427) (498) (484)
Foreign currency translation      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (241) (146)  
Other comprehensive income/(loss) before reclassifications 62 (95)  
Amounts reclassified from accumulated other comprehensive income/(loss) 0 0  
Total other comprehensive income/(loss) 62 (95)  
Ending balance (179) (241) (146)
Derivative instruments      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 16 16  
Other comprehensive income/(loss) before reclassifications 0 0  
Amounts reclassified from accumulated other comprehensive income/(loss) (1) 0  
Total other comprehensive income/(loss) (1) 0  
Ending balance $ 15 $ 16 $ 16
[1] Net of deferred taxes of ($24) million, $6 million, and $31 million during 2025, 2024, and 2023, respectively.
[2] AOCI = Accumulated Other Comprehensive Income/Loss (Note 9)