Pension Savings And Other Postretirement Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Net curtailments/settlements/termination benefits charge (credit)	$ 0	$ 0		$ 0	$ 33
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]
Defined Contribution Plan, Cost Recognized	31	28		64	55
Postretirement benefit cost (credit)	(6)	(4)		(10)	(7)
United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost- benefits earned during the period	1	4		2	13
Interest cost on projected benefit obligation	60	63		121	128
Expected return on plan assets	(75)	(77)		(150)	(157)
Amortization of prior service cost	0	0		0	1
Amortization of net losses	26	27		54	60
Defined Benefit Plan Net Periodic Benefit Cost Before Curtailments Settlements and Termination Benefits	12	17		27	45
Net curtailments/settlements/termination benefits charge (credit)	0	0		0	32
Total defined benefit pension cost	12	17		27	77
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]
Contributions to pension plans			$ 1,167
Foreign Pension Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost- benefits earned during the period	13	9		22	18
Interest cost on projected benefit obligation	28	34		57	68
Expected return on plan assets	(27)	(31)		(53)	(61)
Amortization of net losses	10	9		19	18
Defined Benefit Plan Net Periodic Benefit Cost Before Curtailments Settlements and Termination Benefits	24	21		45	43
Net curtailments/settlements/termination benefits charge (credit)	1	(1)		1	(14)
Total defined benefit pension cost	25	20		46	29
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]
Contributions to pension plans	$ 16			32
North America [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Net curtailments/settlements/termination benefits charge (credit)					33
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments			(33)
UNITED KINGDOM
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements			(5)
FRANCE
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments		$ 2			$ 22
Minimum | Foreign Pension Plan [Member]
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]
Contributions to pension plans				50
Maximum | Foreign Pension Plan [Member]
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]
Contributions to pension plans				$ 75
Discretionary Contributions [Member]
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]
Contributions to pension plans			$ 907