Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2023

Commitments and Contingencies.

Changes to Gross Insurance Liabilities

	2023(a)		2022
Balance as of January 1	$	729	$	734
Self-insurance expense		201		242
Cash paid and other		(218)		(247)
Balance as of December 31	$	712	$	729
Current portion as of December 31	$	175	$	189
Long-term portion as of December 31	$	537	$	540

(a) Based on current estimates, we anticipate that most of our insurance reserves will be settled in cash over the next six years.