Pension and Postretirement Benefit Plans - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jan. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Charge for write off of actuarial losses		$ 42		$ 42
Defined benefit plan investment policy description			Investment policy — Target asset allocations of U.S. pension plans are established through an investment policy, which is updated periodically and reviewed by an Investment Committee, comprised of certain company officers and directors. The investment policy allows for a flexible asset allocation mix which is intended to provide appropriate diversification to lessen market volatility while assuming a reasonable level of economic risk.
Period of forecast			10 years
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plans Green Zone Percentage	80.00%		80.00%
Multiemployer Plans Yellow Zone Percentage	65.00%		65.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plans Red Zone Percentage	65.00%		65.00%
Percentage of contribution range			5.00%
United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated net actuarial (gain) loss for defined benefit plans to be amortized next year			$ 21
Unrecognized pension expense	$ 513	$ 491	$ 513	491
Acceptance Rate Of Program		71.00%
Distribution of plan assets				133
Charge for write off of actuarial losses				36
The amount the reduction in pension obligations exceeded the assets distributed				38
Actuarial loss from change in discount rate				$ 165
Long Term Improvement Rate				0.75%
Mortality actuarial assumption loss				$ 83
Plan asset gains				119
Expected rate of return	6.50%
Projected contributions to be made to the defined benefit pension plans			$ 0
United States Pension Plan of US Entity [Member] | Growth Portfolio [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	45.00%		45.00%
Asset target allocation			45.50%
United States Pension Plan of US Entity [Member] | Immunizing Portfolio [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	53.00%		53.00%
Asset target allocation			53.50%
United States Pension Plan of US Entity [Member] | Liquidity Portfolio [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	2.00%		2.00%
Asset target allocation			5.00%
Foreign Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated net actuarial (gain) loss for defined benefit plans to be amortized next year			$ 5
Unrecognized pension expense	$ 83	$ 106	83	106
Distribution of plan assets			$ 2	7
Charge for write off of actuarial losses				6
Projected contributions to be made to the defined benefit pension plans			$ 14
Foreign Pension Plan [Member] | CANADA
Defined Benefit Plan Disclosure [Line Items]
Charge for write off of actuarial losses		6
Foreign Pension Plan [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Operations In Venezuela [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized pension expense						$ 11
Foreign Pension Plan [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Operations In Venezuela [Member] | Noncontrolling Interest [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized pension expense						$ 1
Foreign Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated net actuarial (gain) loss for defined benefit plans to be amortized next year			0
Unrecognized pension expense	$ (15)	$ (9)	$ (15)	$ (9)
Distribution of plan assets