Defined Benefit Postretirement Plans and Defined Contribution Plan (Details 2) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
United States Pension Plans of US Entity, Defined Benefit [Member]
Components of net periodic benefit cost:
Defined Benefit Plan, Service Cost, Continuing Operations			$ 29	$ 31	$ 33
Defined Benefit Plan, Interest Cost, Continuing Operations			25	35	40
Expected return on plan assets			(30)	(34)	(43)
Depreciation, Depletion and Amortization [Abstract]
- prior service cost (credit)			(7)	5	6
- actuarial loss			22	29	43
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	[1]		5	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	[2]		(119)	(99)	(45)
Net periodic benefit cost(b)	[3]		153	165	124
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss (pretax):
Actuarial loss (gain)	[4]		30	149	(161)
Amortization of actuarial (loss) gain			(134)	(128)	(88)
Prior service cost			(89)	0	0
Amortization of prior service credit (cost)			7	(5)	(6)
Total recognized in other comprehensive (income) loss			(186)	16	(255)
Total recognized in net periodic benefit cost and other comprehensive (income) loss			(33)	181	(131)
Foreign Pension Plans, Defined Benefit [Member]
Components of net periodic benefit cost:
Defined Benefit Plan, Service Cost, Continuing Operations			14	16	17
Defined Benefit Plan, Interest Cost, Continuing Operations			25	27	23
Expected return on plan assets			(37)	(32)	(24)
Depreciation, Depletion and Amortization [Abstract]
- prior service cost (credit)			1	1	1
- actuarial loss			2	1	4
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	[1]		(4)	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	[2]		0	0	0
Net periodic benefit cost(b)	[3]		9	13	21
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss (pretax):
Actuarial loss (gain)	[4]		(25)	33	(15)
Amortization of actuarial (loss) gain			(2)	(1)	(4)
Prior service cost			1	0	0
Amortization of prior service credit (cost)			(5)	(1)	(1)
Total recognized in other comprehensive (income) loss			(31)	31	(20)
Total recognized in net periodic benefit cost and other comprehensive (income) loss			(22)	44	1
Other Postretirement Benefit Plans, Defined Benefit [Member]
Components of net periodic benefit cost:
Defined Benefit Plan, Service Cost, Continuing Operations			3	3	4
Defined Benefit Plan, Interest Cost, Continuing Operations			11	13	12
Expected return on plan assets			0	0	0
Depreciation, Depletion and Amortization [Abstract]
- prior service cost (credit)			(4)	(6)	(6)
- actuarial loss			1	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	[1]		7	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	[2]		0	0	0
Net periodic benefit cost(b)	[3]		4	10	10
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss (pretax):
Actuarial loss (gain)	[4]		(21)	42	(31)
Amortization of actuarial (loss) gain			(1)	0	0
Prior service cost			0	(42)	0
Amortization of prior service credit (cost)			13	6	6
Total recognized in other comprehensive (income) loss			(9)	6	(25)
Total recognized in net periodic benefit cost and other comprehensive (income) loss			$ (5)	$ 16	$ (15)
Scenario, Forecast [Member] | United States and Foreign Pension Plans Defined Benefit [Member]
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year [Abstract]
Defined Benefit Plan, Amortization of Net Gains (Losses)		$ 12
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)		11
Scenario, Forecast [Member] | Other Postretirement Benefit Plans, Defined Benefit [Member]
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year [Abstract]
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)		$ 3

[1] Related to workforce reductions, which reduced the future expected years of service for employees participating in the plans and the impact of discontinuing accruals for future benefits under the U.K. pension plan effective December 31, 2015.

[2] Settlement losses are recorded when lump sum payments from a plan in a period exceed the plan’s total service and interest costs for the period. Such settlements occurred in one or more of our U.S. pension plans in all periods presented.

[3] Net periodic benefit cost reflects a calculated market-related value of plan assets which recognizes changes in fair value over three years.

[4] Activity in 2014 includes the impact of the sale of our Norway business in the fourth quarter of 2014.