Retirement and Benefit Plans - Plan Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure
Plan assets	$ 102	$ 109
Cash equivalents
Defined Benefit Plan Disclosure
Plan assets	7	8
Total debt securities
Defined Benefit Plan Disclosure
Plan assets	95	101
U.S. Treasury and federal agencies securities
Defined Benefit Plan Disclosure
Plan assets	55	57
Asset-backed securities and other debt securities
Defined Benefit Plan Disclosure
Plan assets	40	44
Level 1
Defined Benefit Plan Disclosure
Plan assets	59	62
Level 1 | Cash equivalents
Defined Benefit Plan Disclosure
Plan assets	7	8
Level 1 | Total debt securities
Defined Benefit Plan Disclosure
Plan assets	52	54
Level 1 | U.S. Treasury and federal agencies securities
Defined Benefit Plan Disclosure
Plan assets	52	54
Level 1 | Asset-backed securities and other debt securities
Defined Benefit Plan Disclosure
Plan assets	0	0
Level 2
Defined Benefit Plan Disclosure
Plan assets	43	47
Level 2 | Cash equivalents
Defined Benefit Plan Disclosure
Plan assets	0	0
Level 2 | Total debt securities
Defined Benefit Plan Disclosure
Plan assets	43	47
Level 2 | U.S. Treasury and federal agencies securities
Defined Benefit Plan Disclosure
Plan assets	3	3
Level 2 | Asset-backed securities and other debt securities
Defined Benefit Plan Disclosure
Plan assets	40	44
Level 3
Defined Benefit Plan Disclosure
Plan assets	0	0
Level 3     | Cash equivalents
Defined Benefit Plan Disclosure
Plan assets	0	0
Level 3     | Total debt securities
Defined Benefit Plan Disclosure
Plan assets	0	0
Level 3     | U.S. Treasury and federal agencies securities
Defined Benefit Plan Disclosure
Plan assets	0	0
Level 3     | Asset-backed securities and other debt securities
Defined Benefit Plan Disclosure
Plan assets	$ 0	$ 0