Stockholders' Equity (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income, Beginning Balance		$ (3,312)
Net current period other comprehensive income (loss)		25		$ (1,090)	$ (175)
Spin-off of health care business		0		9	0
Accumulated Other Comprehensive Income, Ending Balance		(3,278)		(3,312)
Unrealized Translation
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income, Beginning Balance		(1,335)		(525)
Other comprehensive income (loss) before reclassifications		(942)		(819)
(Income) loss reclassified from AOCI		37	[1]	0
Net current period other comprehensive income (loss)		(905)		(819)
Adjustments to Accumulated Other Comprehensive Income (Loss), Decrease from Purchase of Noncontrolling Interest		(12)
Spin-off of health care business				9
Accumulated Other Comprehensive Income, Ending Balance		(2,252)		(1,335)	(525)
Other Postretirment Benefit Plans | Defined Benefit Pension Plans
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income, Beginning Balance		(1,924)		(1,668)
Other comprehensive income (loss) before reclassifications		39		(313)
(Income) loss reclassified from AOCI	[2]	872		57
Net current period other comprehensive income (loss)		911		(256)
Adjustments to Accumulated Other Comprehensive Income (Loss), Decrease from Purchase of Noncontrolling Interest		0
Spin-off of health care business				0
Accumulated Other Comprehensive Income, Ending Balance		(1,013)		(1,924)	(1,668)
Other Postretirment Benefit Plans | Other Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income, Beginning Balance		(37)		(15)
Other comprehensive income (loss) before reclassifications		35		(23)
(Income) loss reclassified from AOCI	[2]	(1)		1
Net current period other comprehensive income (loss)		34		(22)
Adjustments to Accumulated Other Comprehensive Income (Loss), Decrease from Purchase of Noncontrolling Interest		0
Spin-off of health care business				0
Accumulated Other Comprehensive Income, Ending Balance		(3)		(37)	(15)
Cash Flow Hedges and Other
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income, Beginning Balance		(16)		(34)
Other comprehensive income (loss) before reclassifications		53		29
(Income) loss reclassified from AOCI		(48)		(11)
Net current period other comprehensive income (loss)		5		18
Spin-off of health care business				0
Accumulated Other Comprehensive Income, Ending Balance		(10)		$ (16)	$ (34)
Proceeds from Noncontrolling Interests		$ 1

[1] Included in other (income) and expense, net as part of the charge related to the deconsolidation of our Venezuelan operations at December 31, 2015 (see Note 1).

[2] Included in computation of net periodic pension and postretirement benefits costs (see Note 9)