Employee Benefit Plans (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
United States Pension Plans of US Entity, Defined Benefit [Member]
Accumulated benefit obligation
Projected benefit obligations	$ 1,323	$ 1,164
Accumulated benefit obligations	1,166	1,045
Fair value of plan assets	157	131
Foreign Pension Plans, Defined Benefit [Member]
Accumulated benefit obligation
Projected benefit obligations	690	708
Accumulated benefit obligations	651	644
Fair value of plan assets	$ 144	$ 121

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details

If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details

- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details