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Share Owners' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended |  | 3 Months Ended | 6 Months Ended |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 Maximum | Jun. 30, 2013 Maximum | Jun. 30, 2014 Maximum | Jun. 30, 2013 Maximum | Jun. 30, 2014 Common Stock | Mar. 31, 2014 Common Stock | Dec. 31, 2013 Common Stock | Jun. 30, 2013 Common Stock | Mar. 31, 2013 Common Stock | Dec. 31, 2012 Common Stock | Jun. 30, 2014 Capital in Excess of Par Value | Jun. 30, 2013 Capital in Excess of Par Value | Jun. 30, 2014 Capital in Excess of Par Value | Jun. 30, 2013 Capital in Excess of Par Value | Jun. 30, 2014 Treasury Stock | Jun. 30, 2013 Treasury Stock | Jun. 30, 2014 Treasury Stock | Jun. 30, 2013 Treasury Stock | Jun. 30, 2014 Retained Earnings (Loss) | Jun. 30, 2013 Retained Earnings (Loss) | Jun. 30, 2014 Retained Earnings (Loss) | Jun. 30, 2013 Retained Earnings (Loss) | Jun. 30, 2014 Accumulated Other Comprehensive Loss | Jun. 30, 2013 Accumulated Other Comprehensive Loss | Jun. 30, 2014 Accumulated Other Comprehensive Loss | Jun. 30, 2013 Accumulated Other Comprehensive Loss | Jun. 30, 2014 Non-controlling Interests | Jun. 30, 2013 Non-controlling Interests | Jun. 30, 2014 Non-controlling Interests | Jun. 30, 2013 Non-controlling Interests
Increase (Decrease) in Share Owners' Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance | $ 1,760 | $ 1,155 | $ 1,603 | $ 1,055 |  |  |  |  |  | $ 2 | $ 2 | $ 2 | $ 2 | $ 2 | $ 2 | $ 3,052 | $ 3,013 | $ 3,040 | $ 3,005 | $ (452) | $ (424) | $ (454) | $ (425) | $ 90 | $ (126) | $ (11) | $ (195) | $ (1,062) | $ (1,485) | $ (1,121) | $ (1,506) | $ 130 | $ 175 | $ 147 | $ 174
Issuance of common stock | 1 | 3 | 5 | 7 |  |  |  |  |  |  |  |  |  |  |  | 1 | 3 | 5 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reissuance of common stock | 1 | 1 | 3 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 1 | 3 | 2 |  |  |  |  |  |  |  |  |  |  |  |
Treasury shares purchased | (12) | (10) | (12) | (10) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (12) | (10) | (12) | (10) |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of exchangeable notes |  | (1) |  | (1) |  |  |  |  |  |  |  |  |  |  |  |  | (1) |  | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation | 6 | 3 | 14 | 7 |  |  |  |  |  |  |  |  |  |  |  | 6 | 3 | 14 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings | 120 | 137 | 226 | 211 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 114 | 132 | 215 | 201 |  |  |  |  | 6 | 5 | 11 | 10
Other comprehensive income (loss) | 62 | (76) | 118 | (59) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 | (74) | 119 | (53) | 2 | (2) | (1) | (6)
Distributions to noncontrolling interests | (16) | (21) | (35) | (21) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (16) | (21) | (35) | (21)
Contribution from noncontrolling interests |  | 3 |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  | 3
Balance | 1,922 | 1,194 | 1,922 | 1,194 |  |  |  |  |  | 2 | 2 | 2 | 2 | 2 | 2 | 3,059 | 3,018 | 3,059 | 3,018 | (463) | (433) | (463) | (433) | 204 | 6 | 204 | 6 | (1,002) | (1,559) | (1,002) | (1,559) | 122 | 160 | 122 | 160
Issuance of common stock (in shares) | 57,815 | 114,861 | 213,542 | 430,565 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reissuance of common stock (in shares) | 49,026 | 57,153 | 97,067 | 97,924 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury shares purchased, shares | 364,436 | 348,289 | 364,436 | 348,289 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock |  |  |  |  |  | $ 100 | $ 75 | $ 100 | $ 75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized | 250,000,000 |  | 250,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  | $ 0.01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock issued (including treasury shares) | 183,897,000 | 182,511,000 | 183,897,000 | 182,511,000 | 183,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury shares | 19,053,000 | 18,152,000 | 19,053,000 | 18,152,000 | 18,786,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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