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Pension and Postretirement Benefit Plans - Additional Information (Details)
12 Months Ended
Dec. 31, 2018
USD ($)
plan
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Defined Benefit Plan Disclosure [Line Items]      
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%    
Multiemployer Plans Yellow Zone Percentage 65.00%    
Percentage of contribution range 5.00%    
Maximum [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Multiemployer Plans Red Zone Percentage 65.00%    
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair Value of Plan Assets $ 1,372,000,000 $ 1,584,000,000  
Pension Plan [Member] | UNITED STATES      
Defined Benefit Plan Disclosure [Line Items]      
Estimated net actuarial (gain) loss for defined benefit plans to be amortized next year $ 21,000,000    
Number of plans being terminated | plan 1    
Benefit Obligation $ 1,501,000,000 1,730,000,000 $ 1,682,000,000
Fair Value of Plan Assets 1,301,000,000 1,513,000,000 $ 1,454,000,000
Actuarial gain (loss) 148,000,000 (115,000,000)  
Accumulated Other Comprehensive Loss (542,000,000) (559,000,000)  
Unrecognized pension expense $ 542,000,000 $ 559,000,000  
Long Term Improvement Rate 0.75% 0.75%  
Assumptions Used Calculating Benefit Obligation, Discount Rate 4.22% 3.55% 3.92%
Expected rate of return next year 6.00%    
Projected contributions to be made to the defined benefit pension plans $ 0    
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Benefit Obligation 938,000,000    
Fair Value of Plan Assets 773,000,000    
Actuarial gain (loss)   $ (69,000,000)  
Accumulated Other Comprehensive Loss $ (370,000,000)    
Assumptions Used Calculating Benefit Obligation, Discount Rate 3.46%    
Expected rate of return next year 3.80%    
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] | Growth Portfolio [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Asset target allocation 0.00%    
Actual asset allocation 5.00%    
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] | Immunizing Portfolio [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Asset target allocation 98.00%    
Actual asset allocation 94.00%    
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] | Liquidity Portfolio [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Asset target allocation 2.00%    
Actual asset allocation 1.00%    
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Actuarial gain (loss) $ (11,000,000) 47,000,000  
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member] | Growth Portfolio [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Asset target allocation 45.00%    
Actual asset allocation 42.00%    
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member] | Immunizing Portfolio [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Asset target allocation 53.00%    
Actual asset allocation 56.00%    
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member] | Liquidity Portfolio [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Asset target allocation 2.00%    
Actual asset allocation 2.00%    
Pension Plan [Member] | Foreign Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Estimated net actuarial (gain) loss for defined benefit plans to be amortized next year $ 6,000,000    
Benefit Obligation 364,000,000 377,000,000 $ 309,000,000
Fair Value of Plan Assets 71,000,000 71,000,000 $ 51,000,000
Actuarial gain (loss) (7,000,000) (7,000,000)  
Accumulated Other Comprehensive Loss (84,000,000) (88,000,000)  
Unrecognized pension expense $ 84,000,000 $ 88,000,000  
Assumptions Used Calculating Benefit Obligation, Discount Rate 2.42% 2.25% 2.48%
Projected contributions to be made to the defined benefit pension plans $ 16,000,000    
Other Postretirement Benefits Plan [Member] | Foreign Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Estimated net actuarial (gain) loss for defined benefit plans to be amortized next year 0    
Benefit Obligation 83,000,000 $ 99,000,000 $ 91,000,000
Fair Value of Plan Assets 0 0 $ 0
Actuarial gain (loss) 7,000,000 (2,000,000)  
Accumulated Other Comprehensive Loss 15,000,000 8,000,000  
Unrecognized pension expense $ (15,000,000) $ (8,000,000)  
Assumptions Used Calculating Benefit Obligation, Discount Rate 3.71% 3.41% 3.69%