Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Significant Accounting Policies [Abstract]

Schedule Of Property And Equipment

					Estimated
	As of December 31,				Useful Lives
(In millions)	2019		2018		(Years)
Land	$	5	$	5	N/A
Buildings and improvements		54		47	10 - 40
Technology and communications		198		208	3 - 7
Machinery, production equipment and vehicles		271		242	3 - 9
Office equipment, furniture and fixtures		28		19	5 - 7
		556		521
Less accumulated depreciation		(344)		(320)
Net property and equipment	$	212	$	201

Impacts Of Adoption Of ASU On Condensed Consolidated Statements Of Financial Position

	As previously reported,		Impact of adopting
(In millions)	December 31, 2018		ASC 842		January 1, 2019
Operating lease right-of-use assets	$	—	$	107	$	107
Finance lease assets, within Property and equipment, net		89		—		89
Total right-of-use assets	$	89	$	107	$	195
Other assets		87		—		86
Total assets	$	5,023	$	106	$	5,129
Current portion of long-term lease liability	$	—	$	15	$	15
Long-term lease liability		—		120		120
Current finance lease liability, within Current portion of long-term debt		31		—		31
Long-term finance lease liability, within Long-term debt		60		—		60
Total lease liabilities	$	90	$	135	$	225
Accrued liabilities, Other		61		(1)		60
Other long-term obligations, primarily self-insured claims		182		(28)		155
Total liabilities	$	2,818	$	106	$	2,925