Pension And Postretirement Benefits (Schedule Of Fair Value Of Pension And Postretirement Assets And Liabilities By Level) (Details) - USD ($)
$ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Pension Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 54,606
|
$ 53,530
|
$ 51,681
|
| Pension Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
42,793
|
43,195
|
|
| Pension Benefits | Non-interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
173
|
85
|
|
| Pension Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
7
|
529
|
|
| Pension Benefits | Foreign currency contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
3
|
5
|
|
| Pension Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
9,795
|
8,072
|
|
| Pension Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
4,844
|
3,946
|
|
| Pension Benefits | Preferred interest |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
5,771
|
8,806
|
|
| Pension Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
11,095
|
10,473
|
|
| Pension Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
6,039
|
6,172
|
|
| Pension Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
443
|
524
|
|
| Pension Benefits | Real estate and real assets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
2,544
|
2,817
|
|
| Pension Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
2,056
|
1,761
|
|
| Pension Benefits | Receivable for variation margin |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
23
|
5
|
|
| Pension Benefits | Investments sold short and other liabilities at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(459)
|
(515)
|
|
| Pension Benefits | Private equity funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 5,154
|
$ 4,544
|
|
| Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] |
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
|
| Pension Benefits | Real estate funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 1,694
|
$ 2,062
|
|
| Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] |
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
|
| Pension Benefits | Commingled funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 7,706
|
$ 5,710
|
|
| Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] |
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
|
| Pension Benefits | Other assets (liabilities) |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ (2,282)
|
$ (1,466)
|
|
| Postretirement Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
3,843
|
4,145
|
4,277
|
| Postretirement Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
2,020
|
2,301
|
|
| Postretirement Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
799
|
549
|
|
| Postretirement Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
363
|
438
|
|
| Postretirement Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
282
|
265
|
|
| Postretirement Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
315
|
530
|
|
| Postretirement Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
139
|
189
|
|
| Postretirement Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
94
|
294
|
|
| Postretirement Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
28
|
36
|
|
| Postretirement Benefits | Securities lending payable and other liabilities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(30)
|
(36)
|
|
| Postretirement Benefits | Private equity funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 24
|
$ 66
|
|
| Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] |
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
|
| Postretirement Benefits | Real estate funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 22
|
$ 27
|
|
| Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] |
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
|
| Postretirement Benefits | Commingled funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 1,843
|
$ 1,797
|
|
| Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] |
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember
|
|
| Postretirement Benefits | Other assets (liabilities) |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ (36)
|
$ (10)
|
|
| Level 1, 2, and 3 | Pension Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
42,334
|
42,680
|
|
| Level 1, 2, and 3 | Postretirement Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
1,990
|
2,265
|
|
| Level 1 | Pension Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
14,979
|
12,255
|
|
| Level 1 | Pension Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
15,429
|
12,768
|
|
| Level 1 | Pension Benefits | Non-interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
173
|
85
|
|
| Level 1 | Pension Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
7
|
529
|
|
| Level 1 | Pension Benefits | Foreign currency contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Pension Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
9,784
|
8,068
|
|
| Level 1 | Pension Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
4,821
|
3,929
|
|
| Level 1 | Pension Benefits | Preferred interest |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Pension Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Pension Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
49
|
|
| Level 1 | Pension Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Pension Benefits | Real estate and real assets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Pension Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
621
|
103
|
|
| Level 1 | Pension Benefits | Receivable for variation margin |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
23
|
5
|
|
| Level 1 | Pension Benefits | Investments sold short and other liabilities at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(450)
|
(513)
|
|
| Level 1 | Postretirement Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
1,152
|
964
|
|
| Level 1 | Postretirement Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
1,153
|
964
|
|
| Level 1 | Postretirement Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
497
|
248
|
|
| Level 1 | Postretirement Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
363
|
438
|
|
| Level 1 | Postretirement Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
282
|
265
|
|
| Level 1 | Postretirement Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
5
|
7
|
|
| Level 1 | Postretirement Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
6
|
6
|
|
| Level 1 | Postretirement Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Postretirement Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 1 | Postretirement Benefits | Securities lending payable and other liabilities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(1)
|
0
|
|
| Level 2 | Pension Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
18,965
|
18,786
|
|
| Level 2 | Pension Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
18,973
|
18,788
|
|
| Level 2 | Pension Benefits | Non-interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Pension Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Pension Benefits | Foreign currency contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
3
|
5
|
|
| Level 2 | Pension Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Pension Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
11
|
11
|
|
| Level 2 | Pension Benefits | Preferred interest |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Pension Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
11,043
|
10,469
|
|
| Level 2 | Pension Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
6,039
|
6,123
|
|
| Level 2 | Pension Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
442
|
522
|
|
| Level 2 | Pension Benefits | Real estate and real assets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Pension Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
1,435
|
1,658
|
|
| Level 2 | Pension Benefits | Receivable for variation margin |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Pension Benefits | Investments sold short and other liabilities at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(8)
|
(2)
|
|
| Level 2 | Postretirement Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
834
|
1,269
|
|
| Level 2 | Postretirement Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
863
|
1,305
|
|
| Level 2 | Postretirement Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
302
|
301
|
|
| Level 2 | Postretirement Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Postretirement Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 2 | Postretirement Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
307
|
492
|
|
| Level 2 | Postretirement Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
132
|
182
|
|
| Level 2 | Postretirement Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
94
|
294
|
|
| Level 2 | Postretirement Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
28
|
36
|
|
| Level 2 | Postretirement Benefits | Securities lending payable and other liabilities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(29)
|
(36)
|
|
| Level 3 | Pension Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
8,390
|
11,639
|
11,333
|
| Level 3 | Pension Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
8,391
|
11,639
|
|
| Level 3 | Pension Benefits | Non-interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Pension Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Pension Benefits | Foreign currency contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Pension Benefits | Equity securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
5,793
|
8,816
|
8,750
|
| Level 3 | Pension Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
11
|
4
|
|
| Level 3 | Pension Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
12
|
6
|
|
| Level 3 | Pension Benefits | Preferred interest |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
5,771
|
8,806
|
|
| Level 3 | Pension Benefits | Fixed Income Funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
53
|
6
|
4
|
| Level 3 | Pension Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
52
|
4
|
|
| Level 3 | Pension Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Pension Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
1
|
2
|
|
| Level 3 | Pension Benefits | Real estate and real assets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
2,544
|
2,817
|
2,579
|
| Level 3 | Pension Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Pension Benefits | Receivable for variation margin |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Pension Benefits | Investments sold short and other liabilities at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
(1)
|
0
|
|
| Level 3 | Postretirement Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
4
|
32
|
13
|
| Level 3 | Postretirement Benefits | Assets at fair value |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
4
|
32
|
|
| Level 3 | Postretirement Benefits | Interest bearing cash |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Postretirement Benefits | Equity securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
1
|
| Level 3 | Postretirement Benefits | Equity securities: Domestic equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Postretirement Benefits | Equity securities: International equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Postretirement Benefits | Fixed Income Funds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
4
|
32
|
12
|
| Level 3 | Postretirement Benefits | Fixed income securities: Corporate bonds and other investments |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
3
|
31
|
|
| Level 3 | Postretirement Benefits | Fixed income securities: Government and municipal bonds |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
1
|
1
|
|
| Level 3 | Postretirement Benefits | Fixed income securities: Mortgage-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Postretirement Benefits | Real estate and real assets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
$ 0
|
| Level 3 | Postretirement Benefits | Securities lending collateral |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Level 3 | Postretirement Benefits | Securities lending payable and other liabilities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
0
|
0
|
|
| Assets held at net asset value practical expedient | Pension Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
14,554
|
12,316
|
|
| Assets held at net asset value practical expedient | Postretirement Benefits |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Total Plan Net Assets |
$ 1,889
|
$ 1,890
|
|