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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Statement of Comprehensive Income [Abstract]    
Net income $ 1,626 $ 1,641
Other comprehensive income/(loss):    
Defined benefit plans 3 1
Foreign currency translation 0 3
Unrealized gain on derivative instruments 0 0
Total other comprehensive income/(loss) [1] 3 4
Comprehensive income $ 1,629 $ 1,645
[1] Net of deferred taxes of $(0.2) million and ($0.1) million during the three months ended March 31, 2025 and 2024, respectively.