Income Taxes (Details 3)-K - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Accrued postretirement benefits	$ 51	$ 58
Foreign tax credit	389	376
Operating and capital loss carryovers	435	464
Other credit carryovers	38	37
Accrued liabilities	82	85
Pension liability	128	117
Other	54	65
Total deferred tax assets	1,177	1,202
Deferred tax liabilities:
Property, plant, and equipment	128	127
Intangibles and deferred software	131	34
Other	22	36
Total deferred tax liabilities	281	197
Valuation allowance	(843)	(884)
Net deferred taxes	53	121
Deferred taxes are included in the Consolidated Balance Sheets:
Prepaid expenses		39
Other assets	177	203
Deferred taxes	(124)	(121)
Net deferred taxes	$ 53	$ 121