| Defined Benefit Plans [Domain] |
Pension Plans, Defined Benefit [Member] |
Foreign Pension Plans, Qualified and Non-qualified Defined Benefit [Member] |
2007 | 2006 |
Defined Benefit Plan Disclosure [Line Items] | Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract] | | |
| Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation | 4,346,000,000 | 3,680,000,000 |
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation | 3,989,000,000 | 3,049,000,000 |
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets | 3,782,000,000 | 3,073,000,000 |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] | | |
| Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation | 3,497,000,000 | 1,020,000,000 |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation | 3,271,000,000 | 854,000,000 |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets | 2,984,000,000 | 578,000,000 |