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Retirement Plans (Tables) | 12 Months Ended
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Dec. 31, 2011
Retirement Plans (Tables) [Abstract] |
Net periodic benefit costs | The following table provides a summary of the total cost related to these plans f or the years ended December 31:
(Millions) |  | 2011 |  | 2010 |  | 2009
Defined benefit pension plan cost |  | $ | 51 |  | $ | 40 |  | $ | 21
Defined contribution plan cost |  |  | 252 |  |  | 217 |  |  | 118
Other postretirement benefit plan cost |  |  | 23 |  |  | 25 |  |  | 29
Net periodic benefit cost |  | $ | 326 |  | $ | 282 |  | $ | 168
Other postretirement benefit plan cost [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Change in the projected benefit obligation of pension and other employee benefit plans | The following table provides a reconciliation of the changes in the projected benefit obligation
(Millions) |  | 2011 |  | 2010
Projected benefit obligation, beginning of year |  | $ | 319 |  | $ | 324
Service cost |  |  | 5 |  |  | 6
Interest cost |  |  | 16 |  |  | 17
Benefits paid |  |  | (18) |  |  | (20)
Actuarial gain |  |  | (5) |  |  | (8)
Curtailment gain |  |  | (6) |  |  | ―
Net change |  |  | (8) |  |  | (5)
Projected benefit obligation, end of year |  | $ | 311 |  | $ | 319
Net Periodic Benefit Cost that are not recognized yet | The following table provides the amounts comprising accumulated other comprehensive loss which are not yet recognized as components of net periodic benefit cost as of December 31
(Millions) |  | 2011 |  | 2010
Net actuarial loss |  | $ | 35 |  | $ | 50
Total, pretax effect |  |  | 35 |  |  | 50
Tax impact |  |  | (13) |  |  | (19)
Total, net of taxes |  | $ | 22 |  | $ | 31
Amount recognized in other comprehensive loss | The following table lists the amounts recognized in other comprehensive loss in 2011:
(Millions) |  | 2011
Net actuarial gain: |  |  |
| Reclassified to earnings from equity(a) |  | $ | (3)
| Gains in current year(b) |  |  | (5)
| Curtailment gain |  |  | (5)
| Early Retiree Reinsurance Program subsidy |  |  | (2)
| Net actuarial gain, pretax |  | $ | (15)
Amortization of actuarial losses. Deferral of actuarial gains.
Schedule of net periodic pension benefit cost | The components of the net periodic benefit cost for all other postretirement benefit plans for the years ended December 31 were as follows:
(Millions) |  | 2011 |  | 2010 |  | 2009
Service cost |  | $ | 5 |  | $ | 6 |  | $ | 5
Interest cost |  |  | 16 |  |  | 17 |  |  | 18
Amortization of prior service cost |  |  | ― |  |  | ― |  |  | (2)
Recognized net actuarial loss |  |  | 3 |  |  | 2 |  |  | 2
Curtailment (gain) loss |  |  | (1) |  |  | ― |  |  | 6
Net periodic benefit cost |  | $ | 23 |  | $ | 25 |  | $ | 29
Weighted-average assumptions used to determine defined benefit pension obligation | Assumptions The weighted-average assumptions used to determine benefit obligations were
|  | 2011 |  | 2010 |
Discount rates |  | 4.5 | % | 5.2 | %
Health care cost increase rate: |  |  |  |  |
Following year |  | 8.0 | % | 8.5 | %
Decreasing to the year 2018 |  | 5.0 | % | 5.0 | %
Expected payments | The Company's other postretirement benefit plans expect to make benefit payments as follows
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2017
(Millions) |  | 2012 |  | 2013 |  | 2014 |  | 2015 |  | 2016 |  | – 2021
Expected payments |  | $ | 22 |  | $ | 23 |  | $ | 23 |  | $ | 23 |  | $ | 24 |  | $ | 118
One percentage-point change in assumed health care cost trend rates | A one percentage-point change in assumed health care cost trend rates would have the following effects:
|  |  |  | One |  | One
|  |  |  | percentage- |  | percentage-
|  |  |  | point increase |  | point decrease
(Millions) |  | 2011 |  | 2010 |  | 2011 |  | 2010
Increase (decrease) on benefits |  |  |  |  |  |  |  |  |  |  |  |
| earned and interest cost for |  |  |  |  |  |  |  |  |  |  |  |
|  | U.S. plans |  | $ | 1 |  | $ | 1 |  | $ | (1) |  | $ | (1)
Increase (decrease) on |  |  |  |  |  |  |  |  |  |  |  |
| postretirement benefit |  |  |  |  |  |  |  |  |  |  |  |
|  | obligation for U.S. plans |  | $ | 13 |  | $ | 15 |  | $ | (12) |  | $ | (13)
Defined benefit pension plan cost [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Net funded status of pension and other employee benefit plans | As of December 31, 2011, the net funded status related to the defined benefit pension plans was underfunded by $443 million, as shown in the following table:
(Millions) |  |  | 2011 |  |  | 2010
Net funded status, beginning of year |  | $ | (383) |  | $ | (406)
Increase in fair value of plan assets |  |  | 17 |  |  | 63
Increase in projected benefit obligation |  |  | (77) |  |  | (40)
Net change |  |  | (60) |  |  | 23
Net funded status, end of year |  | $ | (443) |  | $ | (383)
Defined Benefit plan change in fair value of plan assets | The following tables provide a reconciliation of changes in the fair value of plan assets and projected benefit obligations for all defined benefit pension plans as of December 31: Reconciliation of Change in Fair Value of Plan Assets
(Millions) |  | 2011 |  | 2010
Fair value of plan assets, beginning of year |  | $ | 2,052 |  | $ | 1,989
Actual return on plan assets |  |  | 89 |  |  | 177
Employer contributions |  |  | 35 |  |  | 50
Benefits paid |  |  | (60) |  |  | (55)
Settlements |  |  | (68) |  |  | (81)
Foreign currency exchange rate changes |  |  | 21 |  |  | (28)
Net change |  |  | 17 |  |  | 63
Fair value of plan assets, end of year |  | $ | 2,069 |  | $ | 2,052
Change in the projected benefit obligation of pension and other employee benefit plans | Reconciliation of Change in Projected Benefit Obligation
(Millions) |  | 2011 |  | 2010
Projected benefit obligation, beginning of year |  | $ | 2,435 |  | $ | 2,395
Service cost |  |  | 22 |  |  | 19
Interest cost |  |  | 126 |  |  | 126
Benefits paid |  |  | (60) |  |  | (55)
Actuarial loss |  |  | 33 |  |  | 66
Settlements |  |  | (68) |  |  | (81)
Foreign currency exchange rate changes |  |  | 24 |  |  | (35)
Net change |  |  | 77 |  |  | 40
Projected benefit obligation, end of year |  | $ | 2,512 |  | $ | 2,435
Net Periodic Benefit Cost that are not recognized yet | The following table provides the amounts comprising accumulated other comprehensive loss, which are not yet recognized as components of net periodic pension benefit cost as of December 31:
(Millions) |  |  | 2011 |  |  | 2010
Net actuarial loss |  | $ | 690 |  | $ | 648
Net prior service cost |  |  | (2) |  |  | (2)
Total, pretax effect |  |  | 688 |  |  | 646
Tax impact |  |  | (229) |  |  | (213)
Total, net of taxes |  | $ | 459 |  | $ | 433
Amount recognized in other comprehensive loss | The following table lists the amounts recognized i n other comprehensive loss in 2011:
(Millions) |  | 2011
Net actuarial loss: |  |  |
| Reclassified to earnings from equity(a) |  | $ | (51)
| Losses in current year(b) |  |  | 93
Net actuarial loss, pretax |  | $ | 42
Amortization of actuarial losses and recognition of losses related to lump sum settlements. Deferral of actuarial losses.
Schedule of Accumulated and Projected Benefit Obligations | The accumulated and projected benefit obligations for all defined benefit pension plans as of December 31 we re as follows:
(Millions) |  | 2011 |  | 2010
Accumulated benefit obligation |  | $ | 2,459 |  | $ | 2,353
Projected benefit obligation |  | $ | 2,512 |  | $ | 2,435
Schedule of Accumulated Benefit Obligations in excess of fair value of plan assets | The accumulated benefit obligation and fair value of plan assets for pension plans with accumulated benefit obligation that exceeds the fair value of plan assets we re as follows:
(Millions) |  | 2011 |  | 2010
Accumulated benefit obligation |  | $ | 2,418 |  | $ | 1,407
Fair value of plan assets |  | $ | 2,028 |  | $ | 1,091
Schedule of Benefit Obligations in excess of fair value of plan assets | The amounts disclosed in the table above will vary year to year based on whether plans meet the disclosure requirement. The projected benefit obligation and fair value of plan assets for pension plans with projected benefit obligation that exceeds the fair value of plan assets as of December 31 we re as follows:
(Millions) |  | 2011 |  | 2010
Projected benefit obligation |  | $ | 2,512 |  | $ | 2,435
Fair value of plan assets |  | $ | 2,069 |  | $ | 2,052
Schedule of net periodic pension benefit cost | Net Periodic Pension Benefit Cost The components of the net periodic pension benefit cost for all de fined benefit pension plans f or the years ended December 31 we re as follows:
(Millions) |  | 2011 |  | 2010 |  | 2009
Service cost |  | $ | 22 |  | $ | 19 |  | $ | 14
Interest cost |  |  | 126 |  |  | 126 |  |  | 127
Expected return on plan assets |  |  | (148) |  |  | (145) |  |  | (146)
Amortization of prior service cost |  |  | ― |  |  | (1) |  |  | ―
Recognized net actuarial loss |  |  | 36 |  |  | 23 |  |  | 10
Settlements losses |  |  | 15 |  |  | 18 |  |  | 19
Curtailment gains |  |  | ― |  |  | ― |  |  | (3)
Net periodic pension benefit cost |  | $ | 51 |  | $ | 40 |  | $ | 21
Weighted-average assumptions used to determine defined benefit pension obligation | The weighted-average assumptions used to determine defined benefit pension obligations as of December 31 we re as follows:
|  | 2011 |  | 2010 |
Discount rates |  | 4.7 | % | 5.3 | %
Rates of increase in compensation levels |  | 3.7 | % | 4.0 | %
The weighted-average assumptions used to determine net per iodic pension b enefit costs as of December 31 we re as follows:
|  | 2011 |  | 2010 |  | 2009 |
Discount rates |  | 5.0 | % | 5.3 | % | 5.9 | %
Rates of increase in compensation levels |  | 4.0 | % | 3.6 | % | 3.9 | %
Expected long-term rates of return on assets |  | 6.9 | % | 6.9 | % | 6.9 | %
Target allocation and categorization of all defined benefit pension plan assets measured at fair value on recurring basis | The following table s summarize the target allocation and categorization of all defined benefit pension plan assets measured at fair value on a recurring basis by GAAP's valuation hierarchy:
As of December 31, 2011: |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  | Quoted Prices in |  |  |  |  |  |
|  |  |  |  |  |  |  | Active Markets |  |  | Significant |  |  | Significant
|  | Target |  |  |  |  |  | for Identical |  |  | Observable |  |  | Unobservable
|  | Allocation |  |  |  |  |  | Assets |  |  | Inputs |  |  | Inputs
(Millions, except percentages) |  | 2012 |  |  | Total |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3)
U.S. equity securities |  | 15 | % | $ | 250 |  | $ | 250 |  | $ | ― |  | $ | ―
International equity securities(a) |  | 30 | % |  | 644 |  |  | 644 |  |  | ― |  |  | ―
U.S. fixed income securities |  | 30 | % |  | 582 |  |  | ― |  |  | 582 |  |  | ―
International fixed income securities(a) |  | 15 | % |  | 406 |  |  | ― |  |  | 406 |  |  | ―
Balanced funds |  | 5 | % |  | 69 |  |  | ― |  |  | 69 |  |  | ―
Cash |  | ― |  |  | 12 |  |  | 12 |  |  | ― |  |  | ―
Other(b) |  | 5 | % |  | 106 |  |  | ― |  |  | ― |  |  | 106
Total |  | 100 | % | $ | 2,069 |  | $ | 906 |  | $ | 1,057 |  | $ | 106
As of December 31, 2010: |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  | Quoted Prices in |  |  |  |  |  |
|  |  |  |  |  |  |  | Active Markets |  |  | Significant |  |  | Significant
|  | Target |  |  |  |  |  | for Identical |  |  | Observable |  |  | Unobservable
|  | Allocation |  |  |  |  |  | Assets |  |  | Inputs |  |  | Inputs
(Millions, except percentages) |  | 2011 |  |  | Total |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3)
U.S. equity securities |  | 15 | % | $ | 331 |  | $ | 331 |  | $ | ― |  | $ | ―
International equity securities(a) |  | 30 | % |  | 704 |  |  | 704 |  |  | ― |  |  | ―
U.S. fixed income securities |  | 30 | % |  | 522 |  |  | ― |  |  | 522 |  |  | ―
International fixed income securities(a) |  | 15 | % |  | 318 |  |  | ― |  |  | 318 |  |  | ―
Balanced funds |  | 5 | % |  | 65 |  |  | ― |  |  | 65 |  |  | ―
Cash |  | ― |  |  | 11 |  |  | 11 |  |  | ― |  |  | ―
Other(b) |  | 5 | % |  | 101 |  |  | ― |  |  | ― |  |  | 101
Total |  | 100 | % | $ | 2,052 |  | $ | 1,046 |  | $ | 905 |  | $ | 101
A significant portion of international investments are in U.K. companies and U.K. government and agency securities. Consists of investments in private equity and real estate funds measured at reported net asset value.
Effect of significant unobservable inputs changes in plan assets | The fair value measurement of all defined benefit pension plan assets using significant unobservable inputs (Level 3) changed during the years ended December 31:
(Millions) |  | 2011 |  | 2010
Beginning fair value, January 1 |  | $ | 101 |  | $ | 98
| Actual net gains on plan assets: |  |  |  |  |  |
|  | Held at the end of the year |  |  | 12 |  |  | 11
|  | Sold during the year |  |  | 2 |  |  | ―
| Total net gains |  |  | 14 |  |  | 11
| Net purchases (sales and settlements) |  |  | (9) |  |  | (8)
|  | Net increase |  |  | 5 |  |  | 3
Ending fair value, December 31 |  | $ | 106 |  | $ | 101
Expected payments | The Company's defined benefit pension plans expect to make benefit payments to retirees as follows:
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2017
(Millions) |  | 2012 |  | 2013 |  | 2014 |  | 2015 |  | 2016 |  | –2021
Expected payments |  | $ | 152 |  | $ | 155 |  | $ | 160 |  | $ | 168 |  | $ | 182 |  | $ | 931

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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 -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (b) -Name Accounting Standards Codification -Paragraph 3 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (i) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + 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 -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (k) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&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 -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 3 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (b) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&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 -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (f) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&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 -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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