Supplemental Cash Flow Disclosures (Tables)

12 Months Ended

Dec. 31, 2014

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

The summary of supplemental cash flow disclosures as of and for the years ended December 31 is as follows (in millions):

	2014		2013		2012
Supplemental disclosure of cash flow information -
Interest paid, net of amounts capitalized	$	54	$	59	$	60
Supplemental disclosure of non-cash investing and financing transactions:
Accruals related to property, plant and equipment additions	$	31	$	37	$	27
Capital and financial lease obligations incurred	$	1	$	22	$	—