Retirement Plans and Other Retiree Benefits (Details 3) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Impact on International Pension Benefit Obligation Related to the Venezuela Accounting Change		$ 33
Amounts Recognized in Balance Sheet
Current liabilities		(74)	$ (89)
United States Pension Plan of US Entity [Member]
Change in Benefit Obligations
Benefit obligations at beginning of year		2,406	2,102
Service Cost		2	1
Interest cost		100	102	$ 90
Participants' contributions		0	0
Acquisitions/plan amendments		0	0
Actuarial loss (gain)		(189)	362
Foreign exchange impact		0	0
Termination benefits	[1]	16	5
Curtailments and settlements		0	0
Benefit payments		(134)	(154)
Other	[2]	0	(12)
Benefit obligations at end of year		2,201	2,406	2,102
Change in Plan Assets
Fair value of plan assets at beginning of year		1,771	1,736
Actual return on plan assets		(33)	178
Company's benefit plan contributions		20	23
Participants' contributions		0	0
Foreign exchange impact		0	0
Settlements		0	0
Benefit payments		(134)	(154)
Other		0	(12)
Fair value of plan assets at end of year		1,624	1,771	1,736
Funded Status
Benefit obligations at end of year		2,201	2,406	2,102
Fair value of plan assets at end of year		1,624	1,771	1,736
Net amount recognized		(577)	(635)
Amounts Recognized in Balance Sheet
Noncurrent assets		0	0
Current liabilities		(21)	(20)
Noncurrent liabilities		(556)	(615)
Net amount recognized		(577)	(635)
Amounts recognized in Accumulated other comprehensive income consist of
Actuarial loss		852	933
Transition/prior service cost		2	2
Amounts recognized in accumulated other comprehensive income		854	935
Accumulated benefit obligation		$ 2,100	$ 2,283
Weighted-Average Assumptions Used to Determine Benefit Obligations
Discount Rate		4.93%	4.24%
Long-term rate of return on plan assets		6.80%	6.80%
Long-term rate of compensation increase		3.50%	3.50%
ESOP growth rate		0.00%	0.00%
Medical cost trend rate of increase		0.00%	0.00%
Long-term rate of return on plan assets [Abstract]
Average annual rates of return for the most recent 1-year period		(1.00%)
Average annual rates of return for the most recent 5-year period		7.00%
Average annual rates of return for the most recent 10-year period		6.00%
Average annual rates of return for the most recent 15-year period		6.00%
Average annual rates of return for the most recent 25-year period		8.00%
International Pension Benefits [Member]
Change in Benefit Obligations
Benefit obligations at beginning of year		$ 916	$ 894
Service Cost		20	17
Interest cost		28	35	34
Participants' contributions		2	4
Acquisitions/plan amendments		3	0
Actuarial loss (gain)		(3)	123
Foreign exchange impact		(75)	(88)
Termination benefits	[1]	0	0
Curtailments and settlements		(16)	(28)
Benefit payments		(38)	(40)
Other	[2]	(35)	(1)
Benefit obligations at end of year		802	916	894
Change in Plan Assets
Fair value of plan assets at beginning of year		552	558
Actual return on plan assets		20	65
Company's benefit plan contributions		35	36
Participants' contributions		2	4
Foreign exchange impact		(35)	(43)
Settlements		(14)	(27)
Benefit payments		(38)	(40)
Other		(2)	(1)
Fair value of plan assets at end of year		520	552	558
Funded Status
Benefit obligations at end of year		802	916	894
Fair value of plan assets at end of year		520	552	558
Net amount recognized		(282)	(364)
Amounts Recognized in Balance Sheet
Noncurrent assets		17	6
Current liabilities		(12)	(28)
Noncurrent liabilities		(287)	(342)
Net amount recognized		(282)	(364)
Amounts recognized in Accumulated other comprehensive income consist of
Actuarial loss		219	259
Transition/prior service cost		7	19
Amounts recognized in accumulated other comprehensive income		226	278
Accumulated benefit obligation		$ 739	$ 817
Weighted-Average Assumptions Used to Determine Benefit Obligations
Discount Rate		3.17%	3.06%
Long-term rate of return on plan assets		4.62%	5.05%
Long-term rate of compensation increase		2.78%	2.83%
ESOP growth rate		0.00%	0.00%
Medical cost trend rate of increase		0.00%	0.00%
Other Retiree Benefit Plans [Member]
Change in Benefit Obligations
Benefit obligations at beginning of year		$ 1,011	$ 792
Service Cost		14	10
Interest cost		44	42	38
Participants' contributions		0	0
Acquisitions/plan amendments		0	0
Actuarial loss (gain)		(154)	203
Foreign exchange impact		(14)	(3)
Termination benefits	[1]	1	0
Curtailments and settlements		0	0
Benefit payments		(40)	(33)
Other	[2]	0	0
Benefit obligations at end of year		862	1,011	792
Change in Plan Assets
Fair value of plan assets at beginning of year		41	41
Actual return on plan assets		0	4
Company's benefit plan contributions		13	29
Participants' contributions		0	0
Foreign exchange impact		0	0
Settlements		0	0
Benefit payments		(40)	(33)
Other		0	0
Fair value of plan assets at end of year		14	41	41
Funded Status
Benefit obligations at end of year		862	1,011	792
Fair value of plan assets at end of year		14	41	$ 41
Net amount recognized		(848)	(970)
Amounts Recognized in Balance Sheet
Noncurrent assets		0	0
Current liabilities		(41)	(41)
Noncurrent liabilities		(807)	(929)
Net amount recognized		(848)	(970)
Amounts recognized in Accumulated other comprehensive income consist of
Actuarial loss		305	481
Transition/prior service cost		(2)	(3)
Amounts recognized in accumulated other comprehensive income		303	478
Accumulated benefit obligation		$ 0	$ 0
Weighted-Average Assumptions Used to Determine Benefit Obligations
Discount Rate		4.97%	4.36%
Long-term rate of return on plan assets		6.80%	6.80%
Long-term rate of compensation increase		0.00%	0.00%
ESOP growth rate		10.00%	10.00%
Medical cost trend rate of increase		6.67%	7.00%
Assumed medical cost trend rates [Abstract]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year		6.67%
Ultimate medical cost trend rate		4.75%
Year which ultimate medical cost trend rate is reached		2022

[1] Represents pension and other retiree benefit enhancements incurred in 2015 and 2014 pursuant to the 2012 Restructuring Program.

[2] Other in International Pension Plans includes a $33 impact related to the change in accounting for the Company’s Venezuelan operations. See Note 14, Venezuela.