v3.26.3
Pension Benefits - Schedule of Net Periodic Benefit (Income) Cost For Pension Plans (Details) - Pension Plan - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Net periodic benefit (income) cost $ 90 $ 75 $ 263 $ 151
U.S. Plans        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 2 7 14 21
Interest cost 59 147 321 441
Expected return on plan assets (125) (289) (689) (867)
Net periodic benefit (income) cost (64) (135) (354) (405)
Net periodic benefit (income) cost - continuing operations (64) (60) (195) (178)
Net periodic benefit (income) cost - discontinued operations 0 (75) (159) (227)
Non-U.S. Plans        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 1 1 2 3
Interest cost 41 46 125 138
Expected return on plan assets (71) (69) (212) (211)
Amortization of prior service (credit) cost 1 0 2 0
Recognition of actuarial (gains) losses 0 0 0 14
Settlements and curtailments 0 0 0 68
Net periodic benefit (income) cost (28) (22) (83) 12
Net periodic benefit (income) cost - continuing operations (28) (25) (86) 5
Net periodic benefit (income) cost - discontinued operations $ 0 $ 3 $ 3 $ 7