Fair Value Of Retirement Plan (Details) (USD $) | 12 Months Ended |
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Debt Instrument, Fair Value Disclosure | $755 | $600 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 960 | 966 | 1,151 |
United States Pension Plan of US Entity, Defined Benefit [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 244 | 177 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 391 | 502 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 325 | 287 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 960 | 966 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Registered Investment Companies [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 234 | 163 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Registered Investment Companies [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 234 | 163 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Common Trust Funds [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 273 | 354 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Common Trust Funds [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 273 | 354 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | LDI [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 118 | 148 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | LDI [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 118 | 148 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | GTAA [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Unobservable inputs, Beginning Balance | 140 | 142 | 150 |
Relating to assets still held at the reporting date | -16 | 11 | -8 |
Purchases, sales and settlements | -54 | -13 | 0 |
Defined Benefit Plan, Transfers Between Measurement Levels | ' | 0 | ' |
Unobservable inputs, Ending Balance | 70 | 140 | 142 |
United States Pension Plan of US Entity, Defined Benefit [Member] | GTAA [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 70 | 140 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | GTAA [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 70 | 140 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | HFF [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Unobservable inputs, Beginning Balance | 139 | 128 | 119 |
Relating to assets still held at the reporting date | 15 | 8 | -1 |
Purchases, sales and settlements | 93 | 3 | 10 |
Defined Benefit Plan, Transfers Between Measurement Levels | ' | 0 | ' |
Unobservable inputs, Ending Balance | 247 | 139 | 128 |
United States Pension Plan of US Entity, Defined Benefit [Member] | HFF [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 247 | 139 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | HFF [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 247 | 139 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 10 | 14 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 10 | 14 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Insurance Contracts [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Unobservable inputs, Beginning Balance | 8 | 10 | 9 |
Relating to assets still held at the reporting date | ' | ' | 1 |
Purchases, sales and settlements | 0 | 0 | 0 |
Defined Benefit Plan, Transfers Between Measurement Levels | ' | -2 | ' |
Unobservable inputs, Ending Balance | 8 | 8 | 10 |
United States Pension Plan of US Entity, Defined Benefit [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8 | 8 | ' |
United States Pension Plan of US Entity, Defined Benefit [Member] | Insurance Contracts [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8 | 8 | ' |
Foreign Pension Plan, Defined Benefit [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 434 | 404 | 348 |
Foreign Pension Plan, Defined Benefit [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 136 | 132 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 76 | 57 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 222 | 215 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 434 | 404 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Registered Investment Companies [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 85 | 52 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Registered Investment Companies [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 85 | 52 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Common Trust Funds [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 5 | 5 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Common Trust Funds [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 5 | 8 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Common Trust Funds [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 10 | 13 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Common And Preferred Stock [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 4 | 16 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Common And Preferred Stock [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 20 | ' | ' |
Foreign Pension Plan, Defined Benefit [Member] | Common And Preferred Stock [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 24 | 16 | ' |
Foreign Pension Plan, Defined Benefit [Member] | HFF [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Unobservable inputs, Beginning Balance | 16 | 6 | 5 |
Relating to assets still held at the reporting date | 1 | 4 | ' |
Purchases, sales and settlements | -5 | 6 | 1 |
Unobservable inputs, Ending Balance | 12 | 16 | 6 |
Foreign Pension Plan, Defined Benefit [Member] | HFF [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 12 | 16 | ' |
Foreign Pension Plan, Defined Benefit [Member] | HFF [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 12 | 16 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 9 | 18 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 10 | ' | ' |
Foreign Pension Plan, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 19 | 18 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8 | 8 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 6 | 9 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Corporate Debt Securities [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 14 | 17 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Insurance Contracts [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Unobservable inputs, Beginning Balance | 199 | 180 | 179 |
Relating to assets still held at the reporting date | 12 | 16 | 4 |
Purchases, sales and settlements | -1 | 3 | -3 |
Unobservable inputs, Ending Balance | 210 | 199 | 180 |
Foreign Pension Plan, Defined Benefit [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 210 | 199 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Insurance Contracts [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 210 | 199 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Treasury And Government Securities [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 22 | 22 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Treasury And Government Securities [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 35 | 33 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Treasury And Government Securities [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 57 | 55 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Other [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3 | 11 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Other [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | ' | 7 | ' |
Foreign Pension Plan, Defined Benefit [Member] | Other [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 3 | 18 | ' |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 380 | 309 | ' |
Foreign currency instruments | 0 | 0 | ' |
Foreign currency instruments | 0 | ' | ' |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 467 | 559 | ' |
Foreign currency instruments | 6 | 22 | ' |
Foreign currency instruments | 2 | 1 | ' |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 547 | 502 | ' |
Foreign currency instruments | 0 | 0 | ' |
Foreign currency instruments | 0 | ' | ' |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member] | ' | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,394 | 1,370 | ' |
Foreign currency instruments | 6 | 22 | ' |
Foreign currency instruments | $2 | $1 | ' |