Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Loss Contingencies by Contingency

The following table summarizes the activity in the Company’s accrued obligations for asbestos and other personal injury matters (in millions):

	Three Months Ended March 31,
	2018			2017
Beginning balance	$	307		$	367
Accruals / changes in estimates	7			14
Payments	(9		)	(14		)
Ending balance	$	305		$	367

Accrued Obligations for Environmental Matters

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

	Three Months Ended March 31,
	2018			2017
Beginning balance	$	317		$	342
Accruals / changes in estimates	1			1
Payments	(4		)	(8		)
Ending balance	$	314		$	335