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Employee Benefits - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Pre-Medicare company contribution for retiree medical coverage, maximum percent	4.00%
Contribution to other post retirement plans	$ 112
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer to employee pension plan	538
Pension Benefits | United States
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer to employee pension plan	$ 453

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