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Retirement Plans and Other Retiree Benefits - Additional Information, U.S. Plans (Details) - Pension Plans - United States - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items] |  |
Percentage of investments in Company's common stock | 5.00% | 7.00%
U.S. plans assets sold to Company (in shares) | 384,004 | 0
U.S. plans assets purchased to Company (in shares) | 0 | 0
Dividends received by plans on the Company’s common stock | $ 3 | $ 3

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- Definition The amount of dividends received by the defined benefit plan on the Company's common stock. + References No definition available. + Details
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- Definition The percentage of equity securities of the defined benefit plan invested in the Company's common stock. + References No definition available. + Details
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- Definition Defined Benefit Plan, Plan Assets, Divestiture, Shares + References No definition available. + Details
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- Definition Defined Benefit Plan, Plan Assets, Purchases, Shares + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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