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COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Fair Values of U.S. Pension and Postretirement Benefit Plan Assets by Asset Category as Well as the Percentage That Each Category Comprises of Total Plan Assets and the Respective Target Allocations (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 30,031 | $ 30,129 |
Plan assets target allocation |  | 100.00% | 100.00% |
Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 13,851 | $ 13,705 |
Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 7,912 | 8,447 |
Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 8,268 | 7,977 | $ 7,260
Fair Value, Inputs, Level 3 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 279 | 269 | 223
Fair Value, Inputs, Level 3 | Hedge Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,617 | 3,595 | 3,738
Fair Value, Inputs, Level 3 | Private Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,415 | 1,323 | 1,397
Fair Value, Inputs, Level 3 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,567 | 1,307 | 1,091
Fair Value, Inputs, Level 3 | Risk Parity Funds [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 755 | 817 | $ 756
U.S. Postretirement Medical Benefits |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 130 | 259 |
Domestic |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 29,017 | $ 29,087 |
Percentage of Plan Assets |  | 100.00% | 100.00% |
Domestic | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 811 | $ 1,772 |
Percentage of Plan Assets |  | 2.80% | 6.10% |
Plan assets target allocation, Minimum |  | 0.00% | 0.00% |
Plan assets target allocation, Maximum |  | 5.00% | 5.00% |
Domestic | Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 13,465 | $ 13,303 |
Domestic | Fair Value, Inputs, Level 1 | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 716 | 744 |
Domestic | Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 7,333 | 7,860 |
Domestic | Fair Value, Inputs, Level 2 | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 95 | 1,028 |
Domestic | Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 8,219 | 7,924 |
Domestic | Fair Value, Inputs, Level 3 | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 12,048 | $ 10,634 |
Percentage of Plan Assets |  | 41.50% | 36.60% |
Plan assets target allocation, Minimum |  | 35.00% | 25.00% |
Plan assets target allocation, Maximum |  | 55.00% | 55.00% |
Domestic | Equity securities | U.S. Large Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 4,246 | $ 4,148 |
Domestic | Equity securities | U.S. Small Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 352 | 366 |
Domestic | Equity securities | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,426 | 1,386 |
Domestic | Equity securities | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 2,935 | 2,788 |
Domestic | Equity securities | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,089 | 1,946 |
Domestic | Equity securities | Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 9,366 | 7,600 |
Domestic | Equity securities | Fair Value, Inputs, Level 1 | U.S. Large Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 2,542 | 2,066 |
Domestic | Equity securities | Fair Value, Inputs, Level 1 | U.S. Small Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 310 | 322 |
Domestic | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,271 | 1,270 |
Domestic | Equity securities | Fair Value, Inputs, Level 1 | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 2,935 | 2,788 |
Domestic | Equity securities | Fair Value, Inputs, Level 1 | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 2,308 | 1,154 |
Domestic | Equity securities | Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 2,682 | 3,034 |
Domestic | Equity securities | Fair Value, Inputs, Level 2 | U.S. Large Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,704 | 2,082 |
Domestic | Equity securities | Fair Value, Inputs, Level 2 | U.S. Small Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 42 | 44 |
Domestic | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 155 | 116 |
Domestic | Equity securities | Fair Value, Inputs, Level 2 | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities | Fair Value, Inputs, Level 2 | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 781 | 792 |
Domestic | Equity securities | Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities | Fair Value, Inputs, Level 3 | U.S. Large Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities | Fair Value, Inputs, Level 3 | U.S. Small Cap |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities | Fair Value, Inputs, Level 3 | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities | Fair Value, Inputs, Level 3 | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Equity securities | Fair Value, Inputs, Level 3 | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Fixed Income Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 8,199 | $ 8,848 |
Percentage of Plan Assets |  | 28.20% | 30.40% |
Plan assets target allocation, Minimum |  | 25.00% | 15.00% |
Plan assets target allocation, Maximum |  | 35.00% | 35.00% |
Domestic | Fixed Income Securities | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 733 | $ 772 |
Domestic | Fixed Income Securities | U.S. Government Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,469 | 4,780 |
Domestic | Fixed Income Securities | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,961 | 3,196 |
Domestic | Fixed Income Securities | Municipal Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 36 | 100 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,257 | 4,547 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 1 | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 1 | U.S. Government Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,257 | 4,541 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 1 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 6 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 1 | Municipal Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 4,077 | 3,419 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 2 | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 147 | 159 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 2 | U.S. Government Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 212 | 239 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 2 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,682 | 2,921 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 2 | Municipal Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 36 | 100 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 865 | 882 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 3 | Global Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 586 | 613 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 3 | U.S. Government Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 3 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 279 | 269 |
Domestic | Fixed Income Securities | Fair Value, Inputs, Level 3 | Municipal Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Other Investments [Member] | Hedge Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 3,617 | $ 3,595 |
Percentage of Plan Assets |  | 12.50% | 12.40% |
Plan assets target allocation, Minimum |  | 5.00% | 8.00% |
Plan assets target allocation, Maximum |  | 15.00% | 15.00% |
Domestic | Other Investments [Member] | Private Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 1,415 | $ 1,323 |
Percentage of Plan Assets |  | 4.90% | 4.50% |
Plan assets target allocation, Minimum |  | 1.00% | 3.00% |
Plan assets target allocation, Maximum |  | 10.00% | 10.00% |
Domestic | Other Investments [Member] | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 1,848 | $ 1,766 |
Percentage of Plan Assets |  | 6.40% | 6.10% |
Plan assets target allocation, Minimum |  | 1.00% | 3.00% |
Plan assets target allocation, Maximum |  | 10.00% | 10.00% |
Domestic | Other Investments [Member] | Risk Parity Funds [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | $ 755 | $ 817 |
Percentage of Plan Assets | [1] | 2.60% | 2.80% |
Domestic | Other Investments [Member] | Asset-backed Securities [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  |  | $ 332 |
Percentage of Plan Assets |  |  | 1.10% |
Domestic | Other Investments [Member] | Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Plan assets target allocation, Minimum | [1] | 1.00% | 1.00% |
Plan assets target allocation, Maximum | [1] | 10.00% | 10.00% |
Domestic | Other Investments [Member] | Structured Products [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [2] | $ 324 |  |
Percentage of Plan Assets | [2] | 1.10% |  |
Plan assets target allocation, Minimum | [2] | 0.00% | 0.00% |
Plan assets target allocation, Maximum | [2] | 5.00% | 5.00% |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 1 | Hedge Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 0 | $ 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 1 | Private Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 1 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 126 | 412 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 1 | Risk Parity Funds [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | 0 | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 1 | Asset-backed Securities [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  |  | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 1 | Structured Products [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [2] | 0 |  |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 2 | Hedge Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 2 | Private Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 2 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 155 | 47 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 2 | Risk Parity Funds [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | 0 | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 2 | Asset-backed Securities [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  |  | 332 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 2 | Structured Products [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [2] | 324 |  |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 3 | Hedge Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 3,617 | 3,595 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 3 | Private Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,415 | 1,323 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 3 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 1,567 | 1,307 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 3 | Risk Parity Funds [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | 755 | 817 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 3 | Asset-backed Securities [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  |  | 0 |
Domestic | Other Investments [Member] | Fair Value, Inputs, Level 3 | Structured Products [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [2] | 0 |  |
International [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 1,014 | $ 1,042 |
Percentage of Plan Assets |  | 100.00% | 100.00% |
International [Member] | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 25 | $ 32 |
Percentage of Plan Assets |  | 2.50% | 3.10% |
Plan assets target allocation, Minimum |  | 0.00% | 0.00% |
Plan assets target allocation, Maximum |  | 5.00% | 5.00% |
International [Member] | Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 386 | $ 402 |
International [Member] | Fair Value, Inputs, Level 1 | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 9 | 6 |
International [Member] | Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 579 | 587 |
International [Member] | Fair Value, Inputs, Level 2 | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 16 | 26 |
International [Member] | Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 49 | 53 |
International [Member] | Fair Value, Inputs, Level 3 | Cash and Cash Equivalents |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 448 | $ 463 |
Percentage of Plan Assets |  | 44.10% | 44.30% |
Plan assets target allocation, Minimum |  | 50.00% | 50.00% |
Plan assets target allocation, Maximum |  | 65.00% | 65.00% |
International [Member] | Equity securities | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 16 | $ 19 |
International [Member] | Equity securities | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 176 | 177 |
International [Member] | Equity securities | local market equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 240 | 250 |
International [Member] | Equity securities | U.S. Equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 16 | 17 |
International [Member] | Equity securities | Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 249 | 263 |
International [Member] | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 16 | 19 |
International [Member] | Equity securities | Fair Value, Inputs, Level 1 | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 84 | 82 |
International [Member] | Equity securities | Fair Value, Inputs, Level 1 | local market equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 133 | 145 |
International [Member] | Equity securities | Fair Value, Inputs, Level 1 | U.S. Equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 16 | 17 |
International [Member] | Equity securities | Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 199 | 200 |
International [Member] | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities | Fair Value, Inputs, Level 2 | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 92 | 95 |
International [Member] | Equity securities | Fair Value, Inputs, Level 2 | local market equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 107 | 105 |
International [Member] | Equity securities | Fair Value, Inputs, Level 2 | U.S. Equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities | Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities | Fair Value, Inputs, Level 3 | Emerging Markets |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities | Fair Value, Inputs, Level 3 | International Equity |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities | Fair Value, Inputs, Level 3 | local market equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Equity securities | Fair Value, Inputs, Level 3 | U.S. Equity [Domain] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Fixed Income Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 221 | $ 227 |
Percentage of Plan Assets |  | 21.80% | 21.80% |
Plan assets target allocation, Minimum |  | 15.00% | 15.00% |
Plan assets target allocation, Maximum |  | 35.00% | 35.00% |
International [Member] | Fixed Income Securities | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 149 | $ 149 |
International [Member] | Fixed Income Securities | Foreign Government Debt [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 72 | 78 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 128 | 133 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 1 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 56 | 55 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 1 | Foreign Government Debt [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 72 | 78 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 93 | 94 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 2 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 93 | 94 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 2 | Foreign Government Debt [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 3 | Corporate Bonds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Fixed Income Securities | Fair Value, Inputs, Level 3 | Foreign Government Debt [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Other Investments [Member] | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 111 | $ 108 |
Percentage of Plan Assets |  | 10.90% | 10.40% |
Plan assets target allocation, Minimum |  | 0.00% | 0.00% |
Plan assets target allocation, Maximum |  | 17.00% | 17.00% |
International [Member] | Other Investments [Member] | Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | $ 209 | $ 212 |
Percentage of Plan Assets | [1] | 20.70% | 20.40% |
International [Member] | Other Investments [Member] | Structured Products [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Plan assets target allocation, Minimum | [2] | 0.00% | 0.00% |
Plan assets target allocation, Maximum | [2] | 10.00% | 10.00% |
International [Member] | Other Investments [Member] | Fair Value, Inputs, Level 1 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | $ 0 | $ 0 |
International [Member] | Other Investments [Member] | Fair Value, Inputs, Level 1 | Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | 0 | 0 |
International [Member] | Other Investments [Member] | Fair Value, Inputs, Level 2 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 111 | 108 |
International [Member] | Other Investments [Member] | Fair Value, Inputs, Level 2 | Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | 160 | 159 |
International [Member] | Other Investments [Member] | Fair Value, Inputs, Level 3 | Structured Products(1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 | 0 |
International [Member] | Other Investments [Member] | Fair Value, Inputs, Level 3 | Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | [1] | $ 49 | $ 53 |
[1] | {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjBjMjdiZjQ4NGExMjQxZDVhMTQ5ODAzM2FjMzk5MTdifFRleHRTZWxlY3Rpb246N0ZBQ0U2REM1N0U4MDkxNjA1ODRCNTk5NUMyNDRDMjIM}
[2] | Represents mortgage and asset-backed securities.

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