Retirement Benefits - Fair Value of Plan Assets (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
In Millions, unless otherwise specified |
U.S. Plans | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan Fair Value Of Plan Assets Dividends And Interest Receivable | $349 | $274 | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 41,217 | 42,395 | 39,414 |
U.S. Plans | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 9,326 | 14,326 | ' |
U.S. Plans | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 25,839 | 21,710 | ' |
U.S. Plans | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,052 | 6,359 | ' |
U.S. Plans | Equity | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,114 | 12,714 | ' |
U.S. Plans | Equity | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,012 | 12,515 | ' |
U.S. Plans | Equity | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 98 | 181 | ' |
U.S. Plans | Equity | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 4 | 18 | ' |
U.S. Plans | U.S. companies | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3,749 | 7,607 | ' |
U.S. Plans | U.S. companies | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3,724 | 7,544 | ' |
U.S. Plans | U.S. companies | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 22 | 48 | ' |
U.S. Plans | U.S. companies | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3 | 15 | ' |
U.S. Plans | International companies | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,365 | 5,107 | ' |
U.S. Plans | International companies | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,288 | 4,971 | ' |
U.S. Plans | International companies | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 76 | 133 | ' |
U.S. Plans | International companies | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1 | 3 | ' |
U.S. Plans | Derivative financial instruments | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Derivative financial instruments | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Derivative financial instruments | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Derivative financial instruments | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Fixed Income | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 27,854 | 22,456 | ' |
U.S. Plans | Fixed Income | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3,587 | 2,492 | ' |
U.S. Plans | Fixed Income | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 24,234 | 19,670 | ' |
U.S. Plans | Fixed Income | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 33 | 294 | ' |
U.S. Plans | U.S. government | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3,610 | 2,523 | ' |
U.S. Plans | U.S. government | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3,610 | 2,523 | ' |
U.S. Plans | U.S. government | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | U.S. government | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | U.S. government-sponsored enterprises | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 4,127 | 3,239 | ' |
U.S. Plans | U.S. government-sponsored enterprises | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | U.S. government-sponsored enterprises | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 4,127 | 3,236 | ' |
U.S. Plans | U.S. government-sponsored enterprises | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 3 | ' |
U.S. Plans | Non-U.S. government | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,115 | 2,916 | ' |
U.S. Plans | Non-U.S. government | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Non-U.S. government | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,115 | 2,884 | ' |
U.S. Plans | Non-U.S. government | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 32 | ' |
U.S. Plans | Investment grade | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 15,058 | 10,661 | ' |
U.S. Plans | Investment grade | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Investment grade | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 15,058 | 10,581 | ' |
U.S. Plans | Investment grade | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 80 | ' |
U.S. Plans | High yield | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,254 | 1,400 | ' |
U.S. Plans | High yield | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | High yield | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,254 | 1,386 | ' |
U.S. Plans | High yield | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 14 | ' |
U.S. Plans | Other credit | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 48 | 78 | ' |
U.S. Plans | Other credit | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Other credit | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 48 | 28 | ' |
U.S. Plans | Other credit | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 50 | ' |
U.S. Plans | Mortgage/other asset-backed | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,320 | 1,298 | ' |
U.S. Plans | Mortgage/other asset-backed | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Mortgage/other asset-backed | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,287 | 1,183 | ' |
U.S. Plans | Mortgage/other asset-backed | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 33 | 115 | ' |
U.S. Plans | Commingled funds | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 304 | 477 | ' |
U.S. Plans | Commingled funds | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Commingled funds | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 304 | 477 | ' |
U.S. Plans | Commingled funds | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 18 | -136 | ' |
U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | -23 | -31 | ' |
U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 41 | -105 | ' |
U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Alternatives | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,014 | 5,990 | ' |
U.S. Plans | Alternatives | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Alternatives | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Alternatives | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,014 | 5,990 | ' |
U.S. Plans | Hedge funds | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,778 | 3,121 | ' |
U.S. Plans | Hedge funds | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Hedge funds | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Hedge funds | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,778 | 3,121 | ' |
U.S. Plans | Hedge Funds Global Macro [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 32.00% | 39.00% | ' |
U.S. Plans | Hedge Funds, Event Driven [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 26.00% | 21.00% | ' |
U.S. Plans | Hedge Funds, Equity Long (Short) [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 22.00% | 17.00% | ' |
U.S. Plans | Hedge Funds Relative Value [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 9.00% | 13.00% | ' |
U.S. Plans | Hedge Funds, Multi-strategy [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 11.00% | 10.00% | ' |
U.S. Plans | Private equity | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,626 | 2,412 | ' |
U.S. Plans | Private equity | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Private equity | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Private equity | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,626 | 2,412 | ' |
U.S. Plans | Private Equity Funds Buyout [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 61.00% | 60.00% | ' |
U.S. Plans | Private Equity Funds Venture Capital [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 26.00% | 25.00% | ' |
U.S. Plans | Private Equity Funds Mezzanine Distressed [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 7.00% | 8.00% | ' |
U.S. Plans | Private Equity Funds Other [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 6.00% | 7.00% | ' |
U.S. Plans | Real estate | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 610 | 457 | ' |
U.S. Plans | Real estate | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Real estate | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Real estate | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 610 | 457 | ' |
U.S. Plans | Real Estate Core [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 49.00% | 54.00% | ' |
U.S. Plans | Real Estate Value Added and Opportunistic [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 51.00% | 46.00% | ' |
U.S. Plans | Cash and cash equivalents | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,477 | 1,901 | ' |
U.S. Plans | Cash and cash equivalents | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
U.S. Plans | Cash and cash equivalents | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,477 | 1,844 | ' |
U.S. Plans | Cash and cash equivalents | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 57 | ' |
U.S. Plans | Other | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | -242 | -666 | ' |
U.S. Plans | Other | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | -273 | -681 | ' |
U.S. Plans | Other | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 30 | 15 | ' |
U.S. Plans | Other | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1 | 0 | ' |
Non-U.S. Plans | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan Fair Value Of Plan Assets Dividends And Interest Receivable | 99 | 84 | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 23,843 | 21,713 | 19,198 |
Non-U.S. Plans | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 5,259 | 5,993 | ' |
Non-U.S. Plans | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 10,604 | 9,245 | ' |
Non-U.S. Plans | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 7,980 | 6,475 | ' |
Non-U.S. Plans | Equity | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,139 | 7,057 | ' |
Non-U.S. Plans | Equity | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 5,694 | 6,645 | ' |
Non-U.S. Plans | Equity | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 443 | 411 | ' |
Non-U.S. Plans | Equity | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2 | 1 | ' |
Non-U.S. Plans | U.S. companies | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,940 | 3,444 | ' |
Non-U.S. Plans | U.S. companies | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,711 | 3,221 | ' |
Non-U.S. Plans | U.S. companies | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 229 | 223 | ' |
Non-U.S. Plans | U.S. companies | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | International companies | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3,199 | 3,613 | ' |
Non-U.S. Plans | International companies | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,983 | 3,424 | ' |
Non-U.S. Plans | International companies | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 214 | 188 | ' |
Non-U.S. Plans | International companies | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2 | 1 | ' |
Non-U.S. Plans | Derivative financial instruments | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Derivative financial instruments | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Derivative financial instruments | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Derivative financial instruments | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Fixed Income | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 9,398 | 8,146 | ' |
Non-U.S. Plans | Fixed Income | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 30 | 99 | ' |
Non-U.S. Plans | Fixed Income | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 9,198 | 7,950 | ' |
Non-U.S. Plans | Fixed Income | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 170 | 97 | ' |
Non-U.S. Plans | U.S. government | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 30 | 99 | ' |
Non-U.S. Plans | U.S. government | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 30 | 99 | ' |
Non-U.S. Plans | U.S. government | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | U.S. government | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | U.S. government-sponsored enterprises | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 11 | 6 | ' |
Non-U.S. Plans | U.S. government-sponsored enterprises | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | U.S. government-sponsored enterprises | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 11 | 6 | ' |
Non-U.S. Plans | U.S. government-sponsored enterprises | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Non-U.S. government | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,947 | 5,882 | ' |
Non-U.S. Plans | Non-U.S. government | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Non-U.S. government | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6,880 | 5,841 | ' |
Non-U.S. Plans | Non-U.S. government | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 67 | 41 | ' |
Non-U.S. Plans | Investment grade | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,284 | 1,169 | ' |
Non-U.S. Plans | Investment grade | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Investment grade | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,229 | 1,147 | ' |
Non-U.S. Plans | Investment grade | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 55 | 22 | ' |
Non-U.S. Plans | High yield | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 358 | 269 | ' |
Non-U.S. Plans | High yield | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | High yield | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 337 | 268 | ' |
Non-U.S. Plans | High yield | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 21 | 1 | ' |
Non-U.S. Plans | Other credit | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 50 | 19 | ' |
Non-U.S. Plans | Other credit | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Other credit | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 37 | 13 | ' |
Non-U.S. Plans | Other credit | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 13 | 6 | ' |
Non-U.S. Plans | Mortgage/other asset-backed | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 252 | 196 | ' |
Non-U.S. Plans | Mortgage/other asset-backed | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Mortgage/other asset-backed | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 238 | 168 | ' |
Non-U.S. Plans | Mortgage/other asset-backed | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 14 | 28 | ' |
Non-U.S. Plans | Commingled funds | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 471 | 504 | ' |
Non-U.S. Plans | Commingled funds | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Commingled funds | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 471 | 504 | ' |
Non-U.S. Plans | Commingled funds | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | -5 | 2 | ' |
Non-U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | -5 | 3 | ' |
Non-U.S. Plans | Fixed Income Funds Net Derivative Financial Instruments [Member] | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | -1 | ' |
Non-U.S. Plans | Alternatives | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,610 | 1,708 | ' |
Non-U.S. Plans | Alternatives | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Alternatives | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 1 | ' |
Non-U.S. Plans | Alternatives | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,610 | 1,707 | ' |
Non-U.S. Plans | Hedge funds | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,657 | 1,142 | ' |
Non-U.S. Plans | Hedge funds | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Hedge funds | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Hedge funds | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,657 | 1,142 | ' |
Non-U.S. Plans | Private equity | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 352 | 236 | ' |
Non-U.S. Plans | Private equity | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Private equity | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Private equity | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 352 | 236 | ' |
Non-U.S. Plans | Real estate | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 601 | 330 | ' |
Non-U.S. Plans | Real estate | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Real estate | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 1 | ' |
Non-U.S. Plans | Real estate | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 601 | 329 | ' |
Non-U.S. Plans | Real Estate Core [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 40.00% | 31.00% | ' |
Non-U.S. Plans | Real Estate Value Added and Opportunistic [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 60.00% | 69.00% | ' |
Non-U.S. Plans | Cash and cash equivalents | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 950 | 867 | ' |
Non-U.S. Plans | Cash and cash equivalents | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Cash and cash equivalents | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 950 | 867 | ' |
Non-U.S. Plans | Cash and cash equivalents | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Non-U.S. Plans | Other | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 4,746 | 3,935 | ' |
Non-U.S. Plans | Other | Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | -465 | -751 | ' |
Non-U.S. Plans | Other | Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 13 | 16 | ' |
Non-U.S. Plans | Other | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 5,198 | 4,670 | ' |
United Kingdom and Canadian [Member] | Hedge Funds Global Macro [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 12.00% | 13.00% | ' |
United Kingdom and Canadian [Member] | Hedge Funds, Event Driven [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 35.00% | 36.00% | ' |
United Kingdom and Canadian [Member] | Hedge Funds, Equity Long (Short) [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 35.00% | 26.00% | ' |
United Kingdom and Canadian [Member] | Hedge Funds Relative Value [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 6.00% | 11.00% | ' |
United Kingdom and Canadian [Member] | Hedge Funds, Multi-strategy [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Actual Plan Asset Allocations | 12.00% | 14.00% | ' |
Ford Werke GmbH [Member] | Non-U.S. Plans | Other Pension Benefit Plan Asset Insurance Contracts [Member] | Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | $4,077 | $3,609 | ' |