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Pension and Postretirement Benefit Plans - Additional Information (Details) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2017 USD ($) plan | Dec. 31, 2017 USD ($) plan | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Jan. 31, 2015 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Fair Value of Plan Assets | $ 1,584,000,000 | $ 1,584,000,000 | $ 1,505,000,000 |  |
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% |  |  |
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 | $ 28,000,000 | $ 28,000,000 |  |  |
Number of plans being terminated | plan | 1 | 1 |  |  |
Benefit Obligation | $ 1,730,000,000 | $ 1,730,000,000 | 1,682,000,000 | $ 1,692,000,000 |
Fair Value of Plan Assets | 1,513,000,000 | 1,513,000,000 | 1,454,000,000 | $ 1,493,000,000 |
Actuarial gain (loss) |  | (115,000,000) | (59,000,000) |  |
Accumulated Other Comprehensive Loss | (559,000,000) | (559,000,000) | (560,000,000) |  |
Unrecognized pension expense | $ 559,000,000 | $ 559,000,000 | $ 560,000,000 |  |
Long Term Improvement Rate |  | 0.75% |  |  |
Assumptions Used Calculating Benefit Obligation, Discount Rate | 3.55% | 3.55% | 3.92% | 4.13% |
Expected rate of return next year | 6.00% |  |  |  |
Projected contributions to be made to the defined benefit pension plans | $ 0 | $ 0 |  |  |
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Benefit Obligation | 1,064,000,000 | 1,064,000,000 |  |  |
Fair Value of Plan Assets | 900,000,000 | 900,000,000 |  |  |
Actuarial gain (loss) |  | (69,000,000) |  |  |
Accumulated Other Comprehensive Loss | $ (369,000,000) | $ (369,000,000) |  |  |
Assumptions Used Calculating Benefit Obligation, Discount Rate | 2.79% | 2.79% |  |  |
Expected rate of return next year | 4.10% |  |  |  |
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] | Growth Portfolio [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Asset target allocation | 10.00% | 10.00% |  |  |
Actual asset allocation | 26.00% | 26.00% |  |  |
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] | Immunizing Portfolio [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Asset target allocation | 88.00% | 88.00% |  |  |
Actual asset allocation | 73.00% | 73.00% |  |  |
Pension Plan [Member] | UNITED STATES | Terminated Plan [Member] | Liquidity Portfolio [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Asset target allocation | 2.00% | 2.00% |  |  |
Actual asset allocation | 1.00% | 1.00% |  |  |
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Actuarial gain (loss) |  | $ 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% | 45.00% |  |  |
Actual asset allocation | 39.00% | 39.00% |  |  |
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member] | Immunizing Portfolio [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Asset target allocation | 53.00% | 53.00% |  |  |
Actual asset allocation | 60.00% | 60.00% |  |  |
Pension Plan [Member] | UNITED STATES | Continuing Plans [Member] | Liquidity Portfolio [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Asset target allocation | 2.00% | 2.00% |  |  |
Actual asset allocation | 1.00% | 1.00% |  |  |
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 | $ 6,000,000 |  |  |
Benefit Obligation | 377,000,000 | 377,000,000 | $ 309,000,000 | $ 288,000,000 |
Fair Value of Plan Assets | 71,000,000 | 71,000,000 | 51,000,000 | $ 40,000,000 |
Actuarial gain (loss) |  | (7,000,000) | (18,000,000) |  |
Accumulated Other Comprehensive Loss | (88,000,000) | (88,000,000) | (92,000,000) |  |
Unrecognized pension expense | $ 88,000,000 | $ 88,000,000 | $ 92,000,000 |  |
Assumptions Used Calculating Benefit Obligation, Discount Rate | 2.25% | 2.25% | 2.48% | 2.83% |
Projected contributions to be made to the defined benefit pension plans | $ 16,000,000 | $ 16,000,000 |  |  |
Pension Plan [Member] | Foreign Plan [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Operations In Venezuela [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Unrecognized pension expense |  |  |  |  | $ 11,000,000
Pension Plan [Member] | Foreign 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 |  |  |  |  | $ 1,000,000
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 | 0 |  |  |
Benefit Obligation | 99,000,000 | 99,000,000 | $ 91,000,000 | $ 86,000,000 |
Fair Value of Plan Assets | 0 | 0 | 0 | $ 0 |
Actuarial gain (loss) |  | (2,000,000) | (4,000,000) |  |
Accumulated Other Comprehensive Loss | 8,000,000 | 8,000,000 | 10,000,000 |  |
Unrecognized pension expense | $ (8,000,000) | $ (8,000,000) | $ (10,000,000) |  |
Assumptions Used Calculating Benefit Obligation, Discount Rate | 3.41% | 3.41% | 3.69% | 3.96% |

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- Definition An assumption as to next year's average rate of return on plan assets expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References No definition available. + Details
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- Definition The maximum percentage that the employer's contributions compare to the total contributions to the multiemployer plan made by all employers. + References No definition available. + Details
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- Definition Multiemployer plans certified in the green zone are at least 80 percent funded. + References No definition available. + Details
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- Definition Multiemployer plans certified in the red zone are at generally less than 65 percent funded. + References No definition available. + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 + Details
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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (s) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition A narrative description of investment policies and strategies, including target allocation percentages or range of percentages considering the major categories of plan assets as of the latest statement of financial position presented (on a weighted-average basis for employers with more than one plan), and other factors that are pertinent to an understanding of those policies and strategies such as investment goals, risk management practices, allowable and prohibited investment types including the use of derivatives, diversification, and the relationship between plan assets and benefit obligations. For investment funds disclosed as major categories, the narrative description would be expected to also include a description of the significant investment strategies of those funds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5)(i) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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