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Note 13 - Employee Retirement Plans (Tables) | 12 Months Ended
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Dec. 31, 2015
Note 13 - Employee Retirement Plans (Tables) [Line Items] |
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block] |
| Total pension benefits |  | Domestic pension benefits |  | International pension benefits
December 31, | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014
Change in benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 3,809 |  | $ | 3,300 |  | $ | 3,222 |  | $ | 2,844 |  | $ | 587 |  | $ | 456
Service cost |  | 90 |  |  | 82 |  |  | 64 |  |  | 55 |  |  | 26 |  |  | 27
Interest cost |  | 144 |  |  | 160 |  |  | 126 |  |  | 137 |  |  | 18 |  |  | 23
Plan participants’ contributions |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |  |  |  |
Acquisitions |  |  |  |  | 103 |  |  |  |  |  |  |  |  |  |  |  | 103
Amendments |  |  |  |  | 25 |  |  |  |  |  | 25 |  |  |  |  |  |
Actuarial (gain) loss |  | (95) |  |  | 394 |  |  | (87) |  |  | 327 |  |  | (8) |  |  | 67
Other |  | (8) |  |  | (3) |  |  |  |  |  |  |  |  | (8) |  |  | (3)
Benefits paid |  | (188) |  |  | (207) |  |  | (165) |  |  | (167) |  |  | (23) |  |  | (40)
Foreign currency translation |  | (38) |  |  | (46) |  |  |  |  |  |  |  |  | (38) |  |  | (46)
Benefit obligation at end of year | $ | 3,715 |  | $ | 3,809 |  | $ | 3,161 |  | $ | 3,222 |  | $ | 554 |  | $ | 587
Change in plan assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | $ | 3,263 |  | $ | 2,896 |  | $ | 2,814 |  | $ | 2,596 |  | $ | 449 |  | $ | 300
Actual (loss) gain on plan assets |  | (108) |  |  | 355 |  |  | (111) |  |  | 287 |  |  | 3 |  |  | 68
Employer contributions |  | 116 |  |  | 147 |  |  | 77 |  |  | 97 |  |  | 39 |  |  | 50
Plan participants’ contributions |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |  |  |  |
Acquisitions |  |  |  |  | 97 |  |  |  |  |  |  |  |  |  |  |  | 97
Benefits paid |  | (188) |  |  | (207) |  |  | (165) |  |  | (167) |  |  | (23) |  |  | (40)
Foreign currency translation |  | (26) |  |  | (26) |  |  |  |  |  |  |  |  | (26) |  |  | (26)
Fair value of plan assets at end of year | $ | 3,058 |  | $ | 3,263 |  | $ | 2,616 |  | $ | 2,814 |  | $ | 442 |  | $ | 449
Funded status at end of year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets | $ | 3,058 |  | $ | 3,263 |  | $ | 2,616 |  | $ | 2,814 |  | $ | 442 |  | $ | 449
Benefit obligations |  | (3,715) |  |  | (3,809) |  |  | (3,161) |  |  | (3,222) |  |  | (554) |  |  | (587)
Funded status of plans | $ | (657) |  | $ | (546) |  | $ | (545) |  | $ | (408) |  | $ | (112) |  | $ | (138)
Amounts recognized in the consolidated balance sheets consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncurrent asset | $ | 50 |  | $ | 47 |  |  |  |  |  |  |  | $ | 50 |  | $ | 47
Current liability |  | (35) |  |  | (41) |  | $ | (30) |  | $ | (30) |  |  | (5) |  |  | (11)
Noncurrent liability |  | (672) |  |  | (552) |  |  | (515) |  |  | (378) |  |  | (157) |  |  | (174)
Recognized liability | $ | (657) |  | $ | (546) |  | $ | (545) |  | $ | (408) |  | $ | (112) |  | $ | (138)
Amounts recognized in accumulated other comprehensive income consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss | $ | 332 |  | $ | 308 |  | $ | 305 |  | $ | 278 |  | $ | 27 |  | $ | 30
Prior service cost (credit) |  | 35 |  |  | 41 |  |  | 37 |  |  | 44 |  |  | (2) |  |  | (3)
Amount recognized at end of year | $ | 367 |  | $ | 349 |  | $ | 342 |  | $ | 322 |  | $ | 25 |  | $ | 27
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] |
| December 31,
| 2015 |  | 2014
Projected benefit obligation | $ | 3,341 |  | $ | 3,425
Fair value of plan assets | $ | 2,635 |  | $ | 2,831
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] |
| December 31,
| 2015 |  | 2014
Accumulated benefit obligation | $ | 3,159 |  | $ | 479
Fair value of plan assets | $ | 2,634 |  | $ | 17
Schedule of Net Benefit Costs [Table Text Block] |
| Total pension benefits |  | Domestic pension benefits |  | International pension benefits
December 31, | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013
Service cost | $ 90 |  | $ 82 |  | $ 70 |  | $ 64 |  | $ 55 |  | $ 60 |  | $26 |  | $ 27 |  | $10
Interest cost | 144 |  | 160 |  | 131 |  | 126 |  | 137 |  | 115 |  | 18 |  | 23 |  | 16
Expected return on plan assets | (178) |  | (174) |  | (169) |  | (166) |  | (159) |  | (158) |  | (12) |  | (15) |  | (11)
Amortization of prior service cost (credit) | 6 |  | 6 |  | 5 |  | 7 |  | 7 |  | 6 |  | (1) |  | (1) |  | (1)
Recognition of actuarial loss (gain) | 165 |  | 29 |  | (30) |  | 162 |  | 4 |  | (41) |  | 3 |  | 25 |  | 11
Total net periodic benefit expense | $227 |  | $103 |  | $ 7 |  | $193 |  | $ 44 |  | $ (18) |  | $34 |  | $ 59 |  | $25
Other changes in plan assets and benefit obligations recognized in other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Curtailment effects |  |  | $ (3) |  |  |  |  |  |  |  |  |  |  |  | $ (3) |  |
Settlements | $ (1) |  | (2) |  |  |  |  |  |  |  |  |  | $(1) |  | (2) |  |
Current year actuarial loss (gain) | 191 |  | 212 |  | $(264) |  | $189 |  | $198 |  | $(274) |  | 2 |  | 14 |  | $10
Recognition of actuarial (loss) gain | (165) |  | (29) |  | 30 |  | (162) |  | (4) |  | 41 |  | (3) |  | (25) |  | (11)
Current year prior service cost |  |  | 25 |  |  |  |  |  | 25 |  |  |  |  |  |  |  |
Amortization of prior service (cost) credit | (6) |  | (6) |  | (5) |  | (7) |  | (7) |  | (6) |  | 1 |  | 1 |  | 1
Total recognized in other comprehensive (income) loss | $ 19 |  | $197 |  | $(239) |  | $ 20 |  | $212 |  | $(239) |  | $(1) |  | $(15) |  | $ 0
Total recognized in net periodic benefit cost and other comprehensive (income) loss | $246 |  | $300 |  | $(232) |  | $213 |  | $256 |  | $(257) |  | $33 |  | $ 44 |  | $25
Schedule of Assumptions Used [Table Text Block] |
| Pension benefits |  |
| Domestic |  | International |  | Postretirement benefits
| 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013
Discount rate | 4.24% |  | 4.00% |  | 4.75% |  | 3.23% |  | 3.21% |  | 4.08% |  | 4.31% |  | 4.00% |  | 4.75%
Rate of compensation increase | 3.50% |  | 3.50% |  | 4.00% |  | 3.92% |  | 3.88% |  | 3.85% |  |  |  |  |  |
| Pension benefits |  |
| Domestic |  | International |  | Postretirement benefits
| 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013
Discount rate | 4.00% |  | 4.75% |  | 3.75% |  | 3.21% |  | 4.08% |  | 4.48% |  | 4.00% |  | 4.75% |  | 4.00%
Expected return on plan assets | 6.00% |  | 6.25% |  | 6.00% |  | 2.97% |  | 4.12% |  | 3.73% |  |  |  |  |  |
Rate of compensation increase | 3.50% |  | 4.00% |  | 4.00% |  | 3.88% |  | 3.85% |  | 3.45% |  |  |  |  |  |
Schedule of Health Care Cost Trend Rates [Table Text Block] |
Assumed health care trend rates at December 31 | 2015 |  | 2014
Health care cost trend rate assumed for next year | 7% |  | 6.67%
Rate that the cost trend rate gradually declines to | 5% |  | 5%
Year that the rate reaches the ultimate trend rate | 2024 |  | 2020
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] |
| One-percentage-point increase |  | One-percentage-point decrease
Effect on annual total of service and interest cost | $ 4 |  | $ (3)
Effect on postretirement benefit obligation | $52 |  | $(43)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] |
| Level 3 Roll-Forward – Other Assets
(in millions) | 2015 |  | 2014
Beginning balance | $445 |  | $196
Unrealized gains (loss) | 13 |  | 249
Transfer in (out) of level 3 | (212) |  |
Ending balance | $246 |  | $445
Schedule of Expected Benefit Payments [Table Text Block] |
| Expected benefit payments |  |
| Domestic pension benefits |  | International pension benefits | Postretirement benefits |  | Expected federal subsidy payments postretirement benefits
2016 | $ 192 |  | $ 18 | $ 45 |  | $ 2
2017 | $ 178 |  | $ 22 | $ 44 |  | $ 3
2018 | $ 186 |  | $ 24 | $ 44 |  | $ 3
2019 | $ 192 |  | $ 25 | $ 44 |  | $ 3
2020 | $ 198 |  | $ 29 | $ 46 |  | $ 3
2021-2025 | $1,100 |  | $168 | $230 |  | $16
Pension Plan [Member] |
Note 13 - Employee Retirement Plans (Tables) [Line Items] |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] |
| Level 3 assets – Domestic |  | Level 3 assets – International
| Year ended December 2015 |  | Year ended December 2015
(in millions) | Private equity |  | Real estate |  | Mortgages |  | Insurance contracts
Beginning balance at December 31, 2014 | $ | 192 |  | $ | 84 |  | $ | 7 |  | $ | 5
Actual return on plan assets relating to assets still held at the reporting date |  | 16 |  |  | 12 |  |  |  |  |  |
Transfers in and/or out of level 3 |  | (45) |  |  | (35) |  |  | (5) |  |  | (2)
Ending balance at December 31, 2015 | $ | 163 |  | $ | 61 |  | $ | 2 |  | $ | 3
| Level 3 assets – Domestic |  | Level 3 assets – International
| Year ended December 2014 |  | Year ended December 2014
(in millions) | Private equity |  | Real estate |  | Mortgages |  | Insurance contracts
Beginning balance at December 31, 2013 | $ | 207 |  | $ | 93 |  | $ | 0 |  | $ | 6
Actual return on plan assets relating to assets still held at the reporting date |  | 31 |  |  | 8 |  |  |  |  |  | 1
Transfers in and/or out of level 3 |  | (46) |  |  | (17) |  |  | 7 |  |  | (2)
Ending balance at December 31, 2014 | $ | 192 |  | $ | 84 |  | $ | 7 |  | $ | 5
Other Postretirement Benefit Plan [Member] |
Note 13 - Employee Retirement Plans (Tables) [Line Items] |
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block] |
| Postretirement benefits
December 31, | 2015 |  | 2014
Change in benefit obligation |  |  |  |  |
Benefit obligation at beginning of year | $ | 862 |  | $ | 815
Service cost |  | 13 |  |  | 11
Interest cost |  | 33 |  |  | 38
Plan participants’ contributions |  | 7 |  |  | 7
Amendments |  |  |  |  | (5)
Actuarial (gain) loss |  | (97) |  |  | 49
Other |  | 4 |  |  |
Benefits paid |  | (61) |  |  | (56)
Medicare subsidy received |  | 2 |  |  | 3
Foreign currency translation |  |  |  |  |
Benefit obligation at end of year | $ | 763 |  | $ | 862
Funded status at end of year |  |  |  |  |
Fair value of plan assets | $ | 0 |  | $ | 0
Benefit obligations |  | (763) |  |  | (862)
Funded status of plans | $ | (763) |  | $ | (862)
Amounts recognized in the consolidated balance sheets consist of: |  |  |  |  |
Current liability | $ | (45) |  | $ | (48)
Noncurrent liability |  | (718) |  |  | (814)
Recognized liability | $ | (763) |  | $ | (862)
Amounts recognized in accumulated other comprehensive income consist of: |  |  |  |  |
Net actuarial loss | $ | 33 |  | $ | 132
Prior service credit |  | (19) |  |  | (27)
Amount recognized at end of year | $ | 14 |  | $ | 105
Schedule of Net Benefit Costs [Table Text Block] |
| Postretirement benefits
| 2015 |  | 2014 |  | 2013
Service cost | $ | 13 |  | $ | 11 |  | $ | 13
Interest cost |  | 33 |  |  | 38 |  |  | 39
Amortization of net loss |  | 3 |  |  |  |  |  | 15
Amortization of prior service credit |  | (7) |  |  | (6) |  |  | (6)
Total net periodic benefit expense | $ | 42 |  | $ | 43 |  | $ | 61
Other changes in plan assets and benefit obligations recognized in other comprehensive income: |  |  |  |  |  |  |  |
Current year actuarial (gain) loss | $ | (96) |  | $ | 49 |  | $ | (178)
Amortization of actuarial loss |  | (3) |  |  |  |  |  | (15)
Current year prior service credit |  |  |  |  | (5) |  |  | (5)
Amortization of prior service credit |  | 7 |  |  | 6 |  |  | 6
Total recognized in other comprehensive (income) loss | $ | (92) |  | $ | 50 |  | $ | (192)
Total recognized in net periodic benefit cost and other comprehensive (income) loss | $ | (50) |  | $ | 93 |  | $ | (131)
United States Pension Plan of US Entity [Member] |
Note 13 - Employee Retirement Plans (Tables) [Line Items] |
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
|  |  | Fair value measurements at reporting date using
(in millions) | December 31, 2015 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3)
Equity securities: |  |  |  |  |  |  |  |  |  |  |
U.S. companies | $ | 336 |  | $ | 51 |  | $ | 285 |  |  |
International companies |  | 322 |  |  | 79 |  |  | 243 |  |  |
Fixed income: |  |  |  |  |  |  |  |  |  |  |
U.S. corporate bonds |  | 1,566 |  |  | 158 |  |  | 1,408 |  |  |
Private equity (1) |  | 163 |  |  |  |  |  |  |  | $ | 163
Real estate (2) |  | 61 |  |  |  |  |  |  |  |  | 61
Cash equivalents |  | 71 |  |  | 71 |  |  |  |  |  |
Commodities (3) |  | 97 |  |  |  |  |  | 97 |  |  |
Total | $ | 2,616 |  | $ | 359 |  | $ | 2,033 |  | $ | 224
|  |  | Fair value measurements at reporting date using
(in millions) | December 31, 2014 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3)
Equity securities: |  |  |  |  |  |  |  |  |  |  |
U.S. companies | $ | 310 |  | $ | 49 |  | $ | 261 |  |  |
International companies |  | 327 |  |  | 78 |  |  | 249 |  |  |
Fixed income: |  |  |  |  |  |  |  |  |  |  |
U.S. corporate bonds |  | 1,720 |  |  | 166 |  |  | 1,554 |  |  |
Private equity (1) |  | 192 |  |  |  |  |  |  |  | $ | 192
Real estate (2) |  | 84 |  |  |  |  |  |  |  |  | 84
Cash equivalents |  | 80 |  |  | 80 |  |  |  |  |  |
Commodities (3) |  | 101 |  |  |  |  |  | 101 |  |  |
Total | $ | 2,814 |  | $ | 373 |  | $ | 2,165 |  | $ | 276
Foreign Pension Plan [Member] |
Note 13 - Employee Retirement Plans (Tables) [Line Items] |
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
|  |  | Fair value measurements at reporting date using
(in millions) | December 31, 2015 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3)
Equity securities: |  |  |  |  |  |  |  |  |  |  |
U.S. companies | $ | 7 |  |  |  |  | $ | 7 |  |  |
International companies |  | 23 |  |  |  |  |  | 23 |  |  |
Fixed income: |  |  |  |  |  |  |  |  |  |  |
International fixed income |  | 347 |  | $ | 286 |  |  | 61 |  |  |
Insurance contracts |  | 3 |  |  |  |  |  |  |  | $ | 3
Mortgages |  | 2 |  |  |  |  |  |  |  |  | 2
Cash equivalents |  | 60 |  |  | 60 |  |  |  |  |  |
Total | $ | 442 |  | $ | 346 |  | $ | 91 |  | $ | 5
|  |  | Fair value measurements at reporting date using
(in millions) | December 31, 2014 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3)
Equity securities: |  |  |  |  |  |  |  |  |  |  |
U.S. companies | $ | 6 |  |  |  |  | $ | 6 |  |  |
International companies |  | 22 |  |  |  |  |  | 22 |  |  |
Fixed income: |  |  |  |  |  |  |  |  |  |  |
International fixed income |  | 361 |  | $ | 293 |  |  | 68 |  |  |
Insurance contracts |  | 5 |  |  |  |  |  |  |  | $ | 5
Mortgages |  | 7 |  |  |  |  |  |  |  |  | 7
Cash equivalents |  | 48 |  |  | 48 |  |  |  |  |  |
Total | $ | 449 |  | $ | 341 |  | $ | 96 |  | $ | 12

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + 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) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the aggregate benefit obligation and aggregate fair value of plan assets for pension plans and/or other employee benefit plans with benefit obligations in excess of plan assets as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of the effect of a one-percentage-point increase and the effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs and the accumulated postretirement benefit obligation for health care benefits. + 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 (m) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + 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 (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the assumed health care cost trend rates for the next year used to measure the expected cost of benefits covered by the plans, including the ultimate trend rate(s) and when that rate is expected to be achieved. + 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 (l) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + 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 (h) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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