Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Schedule of Loss Contingencies by Contingency

The following table summarizes the activity in the Company’s accrued obligations for personal injury claims (in millions):

	Three Months Ended March 31,
	2022		2021
Beginning balance	$	296	$	273
Accruals / changes in estimates	14		17
Payments	(12)		(6)
Ending balance	$	298	$	284
Current portion of ending balance	$	90	$	75

Accrued Obligations for Environmental Matters

The following table summarizes the activity in the Company’s accrued obligations for environmental costs (in millions):

	Three Months Ended March 31,
	2022		2021
Beginning balance	$	251	$	265
Accruals / changes in estimates	1		1
Payments	(4)		(5)
Ending balance	$	248	$	261
Current portion of ending balance	$	35	$	35