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Pension and Other Retiree Benefits - Weighted Average Asset Allocation (Details) - Pension		Dec. 31, 2025	Dec. 31, 2024
U.S.
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		100.00%	100.00%
U.S. | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		34.00%	34.00%
U.S. | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		60.00%	59.00%
U.S. | Real estate
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		2.00%	4.00%
U.S. | Other
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	[1]	4.00%	3.00%
International
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		100.00%	100.00%
International | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		4.00%	6.00%
International | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		68.00%	59.00%
International | Real estate
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations		0.00%	2.00%
International | Other
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	[1]	28.00%	33.00%
[1] Multi-strategy hedge funds, commodity linked funds, private equity funds, and cash and cash equivalents for certain of our plans.

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