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Summary of Contractual Maturities of Financial Liabilities and Other Contractual Commitments (Parenthetical) (Detail) - 6.5% Senior Notes Due 2021 [Member] $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Disclosure of Nonderivative Financial Instruments [Line Items] |
Long term debt interest rate | 6.50%
Long term debt maturity year | December 15, 2021
Amount redeemed | $ 75
Liquidity risk [Member] |
Disclosure of Nonderivative Financial Instruments [Line Items] |
Long term debt interest rate | 6.50%
Long term debt maturity year | 15-Dec-21
Amount redeemed | $ 25

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- Details
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- Details
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