Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000874761 (http://www.sec.gov/CIK)

Compensation and Retirement Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Funded Status	The following table reconciles the Company's funded status, both domestic and foreign, as of the periods indicated (in millions): December 31,   2016   2015     U.S.   Foreign   U.S.   Foreign CHANGE IN PROJECTED BENEFIT OBLIGATION:                 Benefit obligation as of January 1   $ 1,172   $ 2,876   $ 1,235   $ 4,222 Service cost   13   13   16   15 Interest cost   42   344   48   340 Employee contributions   —   3   —   3 Plan amendments   —   (4 )   5   2 Plan curtailments   2   —   —   — Plan settlements   —   —   (3 )   — Benefits paid   (60 )   (303 )   (61 )   (292 ) Actuarial (gain) loss   19   558   (68 )   (158 ) Effect of foreign currency exchange rate changes   —   505   —   (1,256 ) Benefit obligation as of December 31   $ 1,188   $ 3,992   $ 1,172   $ 2,876 CHANGE IN PLAN ASSETS:                 Fair value of plan assets as of January 1   $ 1,021   $ 2,195   $ 1,061   $ 3,144 Actual return on plan assets   61   451   (7 )   175 Employer contributions   22   138   31   86 Employee contributions   —   3   —   3 Plan settlements   —   —   (3 )   — Benefits paid   (60 )   (303 )   (61 )   (292 ) Effect of foreign currency exchange rate changes   —   340   —   (921 ) Fair value of plan assets as of December 31   $ 1,044   $ 2,824   $ 1,021   $ 2,195 RECONCILIATION OF FUNDED STATUS                 Funded status as of December 31   $ (144 )   $ (1,168 )   $ (151 )   $ (681 )
Schedule of Amounts Recognized in Balance Sheet	The following table summarizes the amounts recognized on the Consolidated Balance Sheets related to the funded status of the plans, both domestic and foreign, as of the periods indicated (in millions): December 31,   2016   2015 Amounts Recognized on the Consolidated Balance Sheets   U.S.   Foreign   U.S.   Foreign Noncurrent assets   $ —   $ 60   $ —   $ 67 Accrued benefit liability—current   —   (5 )   —   (5 ) Accrued benefit liability—noncurrent   (144 )   (1,223 )   (151 )   (743 ) Net amount recognized at end of year   $ (144 )   $ (1,168 )   $ (151 )   $ (681 )
Schedule of Accumulated and Projected Benefit Obligations	The following table summarizes the Company's U.S. and foreign accumulated benefit obligation as of the periods indicated (in millions): December 31, 2016   2015     U.S.   Foreign   U.S.   Foreign   Accumulated Benefit Obligation $ 1,167   $ 3,942   $ 1,150   $ 2,836   Information for pension plans with an accumulated benefit obligation in excess of plan assets:                 Projected benefit obligation $ 1,188   $ 3,671   $ 1,172   $ 2,585   Accumulated benefit obligation 1,167   3,638   1,150   2,561   Fair value of plan assets 1,044   2,448   1,021   1,842   Information for pension plans with a projected benefit obligation in excess of plan assets:                 Projected benefit obligation $ 1,188   $ 3,793 (1)  $ 1,172   $ 2,600 (1)  Fair value of plan assets 1,044   2,565 (1)  1,021   1,853 (1)  _____________________________ (1)  $1.2 billion and $686 million of the total net unfunded projected benefit obligation is due to Eletropaulo in Brazil as of December 31, 2016 and 2015, respectively.
Schedule of Assumptions Used	The following table summarizes the significant weighted average assumptions used in the calculation of benefit obligation and net periodic benefit cost, both domestic and foreign, as of the periods indicated: December 31,   2016   2015       U.S.   Foreign   U.S.   Foreign   Benefit Obligation — Discount rate 4.28 %   10.08 % (1)  4.44 %   11.35 % (1)    Rate of compensation increase 3.34 %   6.41 %   3.34 %   6.31 %   Periodic Benefit Cost — Discount rate 4.44 %   11.37 %   4.04 %   10.47 %     Expected long-term rate of return on plan assets 6.67 %   9.54 %   6.67 %   9.77 %     Rate of compensation increase 3.34 %   6.40 %   3.94 %   6.33 %   _____________________________ (1)  Includes an inflation factor that is used to calculate future periodic benefit cost, but is not used to calculate the benefit obligation.
Impact Of One Percent Change In Assumptions	The impact on pension expense from a one percentage point change in these assumptions is shown in the following table (in millions): Increase of 1% in the discount rate   $ (37 ) Decrease of 1% in the discount rate   32 Increase of 1% in the long-term rate of return on plan assets   (35 ) Decrease of 1% in the long-term rate of return on plan assets   35
Schedule of Net Benefit Costs	The following table summarizes the components of the net periodic benefit cost, both domestic and foreign, for the years indicated (in millions): December 31,   2016   2015   2014 Components of Net Periodic Benefit Cost:   U.S.   Foreign   U.S.   Foreign   U.S.   Foreign Service cost   $ 13   $ 13   $ 16   $ 15   $ 14   $ 16 Interest cost   42   344   48   340   50   473 Expected return on plan assets   (68 )   (221 )   (70 )   (236 )   (67 )   (348 ) Amortization of prior service cost   7   (1 )   7   —   6   (1 ) Amortization of net loss   18   19   20   25   13   35 Curtailment loss recognized   4   —   —   —   —   — Settlement gain recognized   —   —   —   —   —   1 Total pension cost   $ 16   $ 154   $ 21   $ 144   $ 16   $ 176
Schedule of Net Periodic Benefit Cost Not yet Recognized	The following table summarizes in millions the amounts reflected in AOCL, including AOCL attributable to noncontrolling interests, on the Consolidated Balance Sheet as of December 31, 2016, that have not yet been recognized as components of net periodic benefit cost and amounts expected to be reclassified to earnings in the next fiscal year (in millions): December 31, 2016 Accumulated Other Comprehensive Income (Loss)   Amounts expected to be reclassified to earnings in next fiscal year   U.S.   Foreign   U.S.   Foreign Prior service cost $ —   $ (1 )   $ —   $ — Unrecognized net actuarial gain (loss) (16 )   (1,370 )   —   (41 ) Total $ (16 )   $ (1,371 )   $ —   $ (41 )
Target / Actual Allocation Of Pension Plan Asset	The following table summarizes the Company's target allocation for 2016 and pension plan asset allocation, both domestic and foreign, as of the periods indicated:           Percentage of Plan Assets as of December 31,   Target Allocations   2016   2015 Asset Category U.S.   Foreign   U.S.   Foreign   U.S.   Foreign Equity securities 53%   15% -28%   50.96 %   9.42 %   44.76 %   12.76 % Debt securities 45%   62% - 85%   45.88 %   78.29 %   50.05 %   81.41 % Real estate 2%   0% - 4%   3.16 %   3.15 %   2.94 %   3.33 % Other —%   0% - 5%   — %   9.14 %   2.25 %   2.50 % Total pension assets         100.00 %   100.00 %   100.00 %   100.00 %
Schedule of Allocation of Plan Assets	The asset allocation is reviewed periodically to determine a suitable asset allocation which seeks to manage risk through portfolio diversification and takes into account, among other possible factors, the above-stated objectives, in conjunction with current funding levels, cash flow conditions and economic and industry trends. The following table summarizes the Company's U.S. plan assets by category of investment and level within the fair value hierarchy as of the periods indicated (in millions):     December 31, 2016   December 31, 2015 U.S. Plans   Level 1   Level 2   Level 3   Total   Level 1   Level 2   Level 3   Total Equity securities: Mutual funds 532   —   —   532   457   —   —   457 Debt securities: Government debt securities 86   —   —   86   53   —   —   53   Mutual funds (1) 393   —   —   393   458   —   —   458 Real Estate: Real Estate —   33   —   33   —   30   —   30 Other: Other investments —   —   —   —   —   23   —   23   Total plan assets $ 1,011   $ 33   $ —   $ 1,044   $ 968   $ 53   $ —   $ 1,021 _____________________________ (1)  Mutual funds categorized as debt securities consist of mutual funds for which debt securities are the primary underlying investment
Fair Value Of Plan Assets By Category / Level (Foreign)	The investment strategy of the foreign plans seeks to maximize return on investment while minimizing risk. The assumed asset allocation has less exposure to equities in order to closely match market conditions and near term forecasts. The following table summarizes the Company's foreign plan assets by category of investment and level within the fair value hierarchy as of the periods indicated (in millions):     December 31, 2016   December 31, 2015 Foreign Plans   Level 1   Level 2   Level 3   Total   Level 1   Level 2   Level 3   Total Equity securities — Mutual funds $ 175   $ —   $ —   $ 175   $ 156   $ —   $ —   $ 156   Private equity (1) —   —   150   150   —   —   124   124 Debt securities — Government debt securities 10   —   —   10   11   29   —   40   Corporate debt securities —   67   —   67   —   —   —   —   Mutual funds (2) 215   2,049   —   2,264   217   1,530   —   1,747 Real estate — Real estate (1) —   —   89   89   —   —   73   73 Other — Participant loans (3) —   —   42   42   —   —   37   37   Other assets 24   —   3   27   16   —   2   18   Total plan assets $ 424   $ 2,116   $ 284   $ 2,824   $ 400   $ 1,559   $ 236   $ 2,195 _____________________________ (1)  Plan assets of our Brazilian subsidiaries are invested in private equities and commercial real estate through the plan administrator in Brazil. The fair value of these assets is determined using the income approach through annual appraisals based on a discounted cash flow analysis. (2)  Mutual funds categorized as debt securities consist of mutual funds for which debt securities are the primary underlying investment. (3)  Loans to participants are stated at cost, which approximates fair value
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets	The following table presents a reconciliation of all plan assets measured at fair value using significant unobservable inputs (Level 3) for the periods indicated (in millions): December 31,   2016   2015 Balance at January 1   $ 236   $ 389 Actual return on plan assets:         Returns relating to assets still held at reporting date   3   (35 ) Change due to exchange rate changes   45   (118 ) Balance at December 31   $ 284   $ 236
Scheduled Cash Flows For Employer Contributions And Expected Future Benefit Payments	The following table summarizes the estimated cash flows for U.S. and foreign expected employer contributions and expected future benefit payments, both domestic and foreign (in millions):     U.S.   Foreign Expected employer contribution in 2017   $ 14   $ 159 Expected benefit payments for fiscal year ending:         2017   67   334 2018   69   346 2019   71   358 2020   72   370 2021   74   381 2022 - 2026   387   2,057