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Retirement Plans (Tables)
 12 Months Ended
Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]  
Schedule Of Benefits To Be Paid From Retirement Plans Over The Next Ten Years
We expect the following benefits to be paid from our retirement plans over the next 10 years:
 
Pension
Benefits
 
Other Post-retirement
Benefits
2013
$
475

 
$
85

2014
495

 
86

2015
519

 
86

2016
545

 
87

2017
574

 
87

2018-2022
3,362

 
430
Schedule of Annual Pension and Other Post-retirement Benefit Costs
Our annual pension and other post-retirement benefit costs consisted of the following:
 
Pension Benefits
 
Year Ended December 31
2010
 
2011
 
2012
 
Service cost
$
211

 
$
245

 
$
266

 
Interest cost
509

 
517

 
523

 
Expected return on plan assets
(600
)
 
(599
)
 
(588
)
 
Recognized net actuarial loss
87

 
173

 
287

 
Amortization of prior service credit
(41
)
 
(43
)
 
(42
)
 
Annual benefit cost
$
166

 
$
293

 
$
446

 
 
Other Post-retirement Benefits
 
Year Ended December 31
2010
 
2011
 
2012
 
Service cost
$
10

 
$
13

 
$
12

 
Interest cost
59

 
62

 
59

 
Expected return on plan assets
(32
)
 
(31
)
 
(30
)
 
Recognized net actuarial loss (gain)
(5
)
 
4

 
10

 
Amortization of prior service cost
2

 
6

 
7

 
Annual benefit cost
$
34

 
$
54

 
$
58

 
Reconciliation Of Benefit Obligations And Plan or Trust Assets And Resulting Funded Status Of Defined Benefit Retirement Plans
The following is a reconciliation of the benefit obligations and plan/trust assets, and the resulting funded status, of our defined-benefit retirement plans:
 
Pension Benefits
 
Other Post-retirement Benefits
 
Year Ended December 31
2011
 
2012
 
2011
 
2012
 
Change in Benefit Obligation
 
 
 
 
 
 
 
 
Benefit obligation at beginning of year
$
(9,238
)
 
$
(10,242
)
 
$
(1,145
)
 
$
(1,179
)
 
Service cost
(245
)
 
(266
)
 
(13
)
 
(12
)
 
Interest cost
(517
)
 
(523
)
 
(62
)
 
(59
)
 
Amendments
(16
)
 
—

 
(3
)
 
—

 
Actuarial loss
(670
)
 
(1,527
)
 
(40
)
 
(211
)
 
Settlement/curtailment/other
(2
)
 
(7
)
 
3

 
(5
)
 
Benefits paid
446

 
451

 
81

 
82

 
Benefit obligation at end of year
$
(10,242
)
 
$
(12,114
)
 
$
(1,179
)
 
$
(1,384
)
 
Change in Plan/Trust Assets
 
 
 
 
 
 
 
 
Fair value of assets at beginning of year
$
6,250

 
$
6,250

 
$
389

 
$
379

 
Actual return on plan assets
80

 
874

 
10

 
64

 
Employer contributions
351

 
532

 
31

 
32

 
Settlement/curtailment/other
4

 
12

 
—

 
—

 
Benefits paid
(435
)
 
(441
)
 
(51
)
 
(49
)
 
Fair value of assets at end of year
$
6,250

 
$
7,227

 
$
379

 
$
426

 
Funded status at end of year
$
(3,992
)
 
$
(4,887
)
 
$
(800
)
 
$
(958
)
 

 
Amounts Recognized On Consolidated Balance Sheet
Amounts recognized on our Consolidated Balance Sheets consisted of the following:
 
Pension Benefits
 
Other Post-retirement Benefits
 
December 31
2011
 
2012
 
2011
 
2012
 
Noncurrent assets
$
110

 
$
144

 
$
—

 
$
—

 
Current liabilities
(90
)
 
(114
)
 
(185
)
 
(204
)
 
Noncurrent liabilities
(4,012
)
 
(4,917
)
 
(615
)
 
(754
)
 
Net liability recognized
$
(3,992
)
 
$
(4,887
)
 
$
(800
)
 
$
(958
)
 
Amounts Deferred In AOCI
Amounts deferred in AOCI consisted of the following:
 
Pension Benefits
 
Other Post-retirement Benefits
 
December 31
2011
 
2012
 
2011
 
2012
 
Net actuarial loss
$
4,790

 
$
5,737

 
$
234

 
$
401

 
Prior service (credit) cost
(258
)
 
(214
)
 
30

 
21

 
Total amount recognized in AOCI, pretax
$
4,532

 
$
5,523

 
$
264

 
$
422

 
Reconciliation Of The Change In AOCI For Defined-Benefit Retirement Plans
The following is a reconciliation of the change in AOCI for our defined-benefit retirement plans:
 
Pension Benefits
 
Other Post-retirement Benefits
 
Year Ended December 31
2011
 
2012
 
2011
 
2012
 
Net actuarial loss
$
1,189

 
$
1,241

 
$
61

 
$
177

 
Prior service cost
16

 
—

 
3

 
—

 
Amortization of:
 
 
 
 
 
 
 
 
Net actuarial loss from prior years
(173
)
 
(287
)
 
(4
)
 
(10
)
 
Prior service credit (cost)
40

 
42

 
(6
)
 
(7
)
 
Other*
3

 
(5
)
 
—

 
(2
)
 
Change in AOCI, pretax
$
1,075

 
$
991

 
$
54

 
$
158

 
Amounts Deferred In AOCI On The Consolidated Balance Sheet
he following table represents amounts deferred in AOCI on the Consolidated Balance Sheet on December 31, 2012, that we expect to recognize in our retirement benefit cost in 2013:
 
Pension Benefits
 
Other Post-retirement
Benefits
 
Prior service (credit) cost
$
(43
)
 
$
6

 
Net actuarial loss
425

 
25

 
Schedule Of ABO That Exceeded The Plans' Assets
Summary information for those plans follows:
December 31
2011
 
2012
 
PBO
$
(9,960
)
 
$
(11,956
)
 
ABO
(9,536
)
 
(11,323
)
 
Fair value of plan assets
5,969

 
7,028

 
Assumptions Used To Determine Our Benefit Obligations And Net Periodic Benefit Costs
The following table summarizes the weighted average assumptions used to determine our benefit obligations:
Assumptions on December 31
2011
 
2012
 
Pension Benefits
 
 
 
 
Discount rate
5.22
%
 
4.22
%
 
Rate of increase in compensation levels
3.77
%
 
3.77
%
 
Other Post-retirement Benefits
 
 
 
 
Discount rate
5.13
%
 
3.97
%
 
Healthcare cost trend rate:
 
 
 
 
Trend rate for next year
8.00
%
 
8.00
%
 
Ultimate trend rate
5.00
%
 
5.00
%
 
Year rate reaches ultimate trend rate
2019

 
2019

 
Weighted Average Assumptions To Determine Net Periodic Benefit Costs
The following table summarizes the weighted average assumptions used to determine our net periodic benefit costs:
Assumptions for Year Ended December 31
2010
 
2011
 
2012
 
Pension Benefits
 
 
 
 
 
 
Discount rate
6.42
%
 
5.73
%
 
5.22
%
 
Expected long-term rate of return on assets
8.43
%
 
8.37
%
 
8.24
%
 
Rate of increase in compensation levels
3.88
%
 
3.86
%
 
3.77
%
 
Other Post-retirement Benefits
 
 
 
 
 
 
Discount rate
6.18
%
 
5.54
%
 
5.13
%
 
Expected long-term rate of return on assets
8.03
%
 
8.03
%
 
8.03
%
 
Defined Bemefit Plan, Effect of Point Twenty Five Percentage Point Change on Net Cost
For our domestic pension plans, the following hypothetical changes in the discount rate and expected long-term rate of return on plan assets would have had the following impact in 2012:
 
Increase
25 basis points
 
Decrease
25 basis points
Increase (decrease) to net pension cost from:
 
 
 
Change in discount rate
$
(31
)
 
$
32

Change in long-term rate of return on plan assets
(16
)
 
16
Asset Allocation Policy Ranges
At the end of 2012, our asset allocation policy ranges were:
Equities
25 - 75%  
Fixed income
10 - 50%  
Cash
0 - 15%  
Other asset classes
0 - 20%  
Fair Value Of Pension Plan Assets By Investment Category And The Corresponding Level Within The Fair Value Hierarchy
The fair value of our pension plan assets by investment category and the corresponding level within the fair value hierarchy were as follows:
 



Fair
Value
 
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)
 
Asset Category
December 31, 2011
 
Cash
$
50

 
$
50

 
$
—

 
$
—

 
Equity securities
 
 
 
 
 
 
 
 
U.S. companies (a)
1,178

 
1,178

 
—

 
—

 
International companies
84

 
84

 
—

 
—

 
Private equity investments
8

 
—

 
—

 
8

 
Fixed-income securities
 
 
 
 
 
 
 
 
Treasury securities
224

 
224

 
—

 
—

 
Corporate bonds (b)
1,585

 
—

 
1,585

 
—

 
Asset-backed securities
60

 
—

 
60

 
—

 
Commingled funds
 
 
 
 
 
 
 
 
Equity funds
2,719

 
224

 
2,495

 
—

 
Money market funds
23

 
—

 
23

 
—

 
Fixed-income funds
176

 
—

 
176

 
—

 
Real estate funds
28

 
—

 
—

 
28

 
Commodity funds
8

 
—

 
8

 
—

 
Other investments
 
 
 
 
 
 
 
 
Insurance deposit agreements
107

 
—

 
—

 
107

 
Total pension plan assets
$
6,250

 
$
1,760

 
$
4,347

 
$
143

 
(a)
No single equity holding amounted to more than 1 percent of the total fair value.
(b)
Our corporate bond investments had an average rating of A-.
 



Fair
Value
 
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)
 
Asset Category
December 31, 2012
 
Cash
$
43

 
$
43

 
$
—

 
$
—

 
Equity securities
 
 
 
 
 
 
 
 
U.S. companies (a)
500

 
500

 
—

 
—

 
International companies
85

 
85

 
—

 
—

 
Private equity investments
8

 
—

 
—

 
8

 
Fixed-income securities
 
 
 
 
 
 
 
 
Treasury securities
141

 
141

 
—

 
—

 
Corporate bonds (b)
1,805

 
—

 
1,805

 
—

 
Commingled funds
 
 
 
 
 
 
 
 
Equity funds
3,791

 
303

 
3,488

 
—

 
Money market funds
240

 
—

 
240

 
—

 
Fixed-income funds
165

 
—

 
165

 
—

 
Real estate funds
32

 
—

 
—

 
32

 
Commodity funds
8

 
—

 
8

 
—

 
Hedge funds
301

 
—

 
201

 
100

 
Other investments
 
 
 
 
 
 
 
 
Insurance deposit agreements
108

 
—

 
—

 
108

 
Total pension plan assets
$
7,227

 
$
1,072

 
$
5,907

 
$
248

 
 
(a)
No single equity holding amounted to more than 1 percent of the total fair value.
(b)
Our corporate bond investments had an average rating of BBB+.
Fair Value Of Other Post-Retirement Plan Assets By Category And The Corresponding Level Within the Fair Value Hierarchy
The fair value of our other post-retirement plan assets by category and the corresponding level within the fair value hierarchy were as follows:
 



Fair
Value
 
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)
 
Asset Category
December 31, 2011
 
Cash
$
8

 
$
8

 
$
—

 
$
—

 
Equity securities
133

 
133

 
—

 
—

 
Fixed-income securities
61

 
2

 
59

 
—

 
Commingled funds
 
 
 
 
 
 
 
 
Money market funds
12

 
—

 
12

 
—

 
Equity funds
159

 
1

 
158

 
—

 
Fixed-income funds
6

 
—

 
6

 
—

 
Total other post-retirement plan assets
$
379

 
$
144

 
$
235

 
$
—

 
 
 



Fair
Value
 
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)
 
Asset Category
December 31, 2012
 
Cash
$
18

 
$
18

 
$
—

 
$
—

 
Equity securities
120

 
120

 
—

 
—

 
Fixed-income securities
56

 
1

 
55

 
—

 
Commingled funds
 
 
 
 
 
 
 
 
Equity funds
225

 
4

 
221

 
—

 
Fixed-income funds
6

 
6

 
—

 
—

 
Hedge funds
1

 
—

 
1

 
—

 
Total other post-retirement plan assets
$
426

 
$
149

 
$
277

 
$
—