Fair Value Measurements - Schedule of Pension Plan Assets at Fair Value by Level (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	$ 2,409	$ 2,465	$ 2,299
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	2,409	2,465
Pension Plan | Total
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	1,671	1,404
Pension Plan | Total | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	171	340
Pension Plan | Total | Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	32	32
Pension Plan | Total | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	514	250
Pension Plan | Total | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	680	646
Pension Plan | Total | Government Securities
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	260	126
Pension Plan | Total | Asset-backed Securities, Derivatives and Other
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	14	10
Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	717	622
Pension Plan | Level 1 | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	171	340
Pension Plan | Level 1 | Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	32	32
Pension Plan | Level 1 | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	514	250
Pension Plan | Level 1 | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	0	0
Pension Plan | Level 1 | Government Securities
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	0	0
Pension Plan | Level 1 | Asset-backed Securities, Derivatives and Other
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	0	0
Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	954	782
Pension Plan | Level 2 | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	0	0
Pension Plan | Level 2 | Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	0	0
Pension Plan | Level 2 | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	0	0
Pension Plan | Level 2 | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	680	646
Pension Plan | Level 2 | Government Securities
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	260	126
Pension Plan | Level 2 | Asset-backed Securities, Derivatives and Other
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	14	10
Pension Plan | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line Items]
Investments at Fair Value	$ 738	$ 1,061