Employee Retirement Plans - Schedule of Domestic Defined Benefit Plan Assets (Details) - Domestic pension benefits - Pension Plan and Other Postretirement Benefits Plan - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	$ 2,842	$ 2,760
Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	651	552
Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	2,189	2,205
Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	2	3
U.S. companies
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	1,261	1,260
U.S. companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount		9
U.S. companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	1,261	1,251
U.S. companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
U.S. treasury bonds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	294	204
U.S. treasury bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	294	204
U.S. treasury bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
U.S. treasury bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
U.S. corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	876	946
U.S. corporate bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
U.S. corporate bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	876	946
U.S. corporate bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Preferred securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount		1
Preferred securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Preferred securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount		1
Preferred securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Private equity | Operating Segments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Private equity | Level 1 | Operating Segments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Private equity | Level 2 | Operating Segments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Private equity | Level 3 | Operating Segments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Real estate
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	2	3
Real estate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Real estate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount
Real estate | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	2	3
Cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	409	346
Cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	357	339
Cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	52	7
Cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount