Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2014

Supplemental Cash Flow Elements [Abstract]

Cash Payments for Interest Costs and Income Taxes

Cash payments for interest costs and income taxes consist of the following (in millions):

	Years Ended December 31,
	2014		2013		2012
Interest costs (none capitalized)	$	1,120	$	760	$	298
Income taxes	$	127	$	39	$	12

Noncash Activity

Non-cash investing items consist of the following (in millions):

	Years Ended December 31,
	2014		2013		2012
Subvention receivable from GM	$	189	$	82	$	21
Commercial loan funding payable to GM	$	427	$	362	$	—