Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Significant Accounting Policies

Schedule of changes in the asset retirement obligation

	Years ended December 31,
(Millions of dollars)	2015		2014
Beginning balance	$	17	$	16
Accretion expense		1		1
Ending balance	$	18	$	17

Schedule of amounts paid for interest and income taxes

	Years ended December 31,
(Millions of dollars)	2015		2014		2013
Interest	$	17	$	20	$	11
Income taxes, net of refunds		60		135		60

Schedule of non-cash transactions resulting from the deconsolidation

(Millions of dollars)
Decrease in net working capital	$	21
Increase in investment in and advances to affiliates		(74)
Decrease in property, plant and equipment		16
Decrease in goodwill		28
Decrease in other intangible assets, net (not subject to amortization)		17
Gain on sale of controlling interest in subsidiary		66
Net proceeds from sale of controlling interest in subsidiary	$	74