Debt instrument, principal amount threshold guaranteed by subsidiaries.

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- Definition

Debt instrument redemption price percentage of principal amount excluding redemption date.

+ References

No definition available.

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- Definition

Debt instrument redemption price percentage of principal amount from net cash proceeds.

+ References

No definition available.

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- Definition

Debt instrument, redemption price, percentage of principal amount redeemed in event of asset dispositions.

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- Definition

Debt instrument, redemption price, percentage of principal amount redeemed in event of change of contract.

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- Definition

Debt instrument, redemption price, percentage of principal amount redeemed in event of change of control.

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- Definition

Number of tender offers.

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- Definition

Tender offer aggregate purchase price.

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- Definition

Tender offer expiration date.

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No definition available.

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- Definition

Tender offer principal amount price per share.

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Tender offer purchase price per share.

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- Definition

Tender offer to purchase accrued interest.

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- Definition

Tender offer to purchase premium amount.

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No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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-Publisher FASB
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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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.

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No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

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No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cash outflow reducing loss contingency liability.

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- Definition

Costs incurred during the period, such as those relating to general administration and policy maintenance that do not vary with and are not primarily related to the acquisition or renewal of insurance contracts.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Debt - Senior Unsecured Notes - Narrative (Details)					12 Months Ended
Debt - Senior Unsecured Notes - Narrative (Details)	Jun. 06, 2018 EUR (€)	May 21, 2018 USD ($) Tender $ / shares	May 23, 2017 USD ($)	May 12, 2015 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)	Jun. 08, 2018 EUR (€)	Jun. 06, 2018 USD ($)	Jun. 06, 2018 EUR (€)	May 12, 2015 EUR (€)
Debt Instrument [Line Items]
Debt instrument net issue discount					$ 8,000,000	$ 10,000,000
Loss on extinguishment of debt					0	(38,000,000)	$ (1,000,000)
PFOA MDL Settlement [Member]
Debt Instrument [Line Items]
Settlement payments			$ 335,000,000
6.625% Senior Unsecured Notes Due May 2023 [Member]
Debt Instrument [Line Items]
Long-term debt					$ 908,000,000	$ 908,000,000
Debt instrument interest rate					6.625%	6.625%		6.625%	6.625%
Debt instrument maturity date					May 31, 2023
4.000% Senior Unsecured Notes Due May 2026 [Member]
Debt Instrument [Line Items]
Long-term debt					$ 501,000,000	$ 513,000,000		€ 450,000,000	€ 450,000,000
Debt instrument interest rate					4.00%	4.00%		4.00%	4.00%
Senior unsecured notes [Member]
Debt Instrument [Line Items]
Long-term debt				$ 2,503,000,000
Senior unsecured notes, payment terms					The Original Notes required or require, as applicable, payment of principal at maturity and payments of interest semi-annually in cash and in arrears on May 15 and November 15 of each year.
Net proceeds from issuance of long term debt			489,000,000
Senior unsecured notes [Member] \| 2026 Euro Notes [Member]
Debt Instrument [Line Items]
Net proceeds from offering \| €	€ 445,000,000
Senior unsecured notes [Member] \| Redemption of 2023 Euro Notes and Issuance of 2026 Euro Notes [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt						$ 35,000,000
Senior unsecured notes [Member] \| Dollar Tender Offer [Member]
Debt Instrument [Line Items]
Tender offer aggregate purchase price											$ 264,000,000
Tender offer early participation premium											13,000,000
Tender offer accrued interest											1,000,000
Senior unsecured notes [Member] \| Euro Tender Offer [member]
Debt Instrument [Line Items]
Tender offer aggregate purchase price \| €										€ 310,000,000
Tender offer early participation premium \| €										14,000,000
Tender offer accrued interest \| €										€ 1,000,000
Senior unsecured notes [Member] \| 6.625% Senior Unsecured Notes Due May 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount				$ 1,350,000,000
Debt instrument interest rate				6.625%									6.625%
Debt instrument maturity date				May 31, 2023
Debt instrument outstanding amount		$ 250,000,000		$ 250,000,000							$ 250,000,000
Number of tender offers \| Tender		2
Senior unsecured notes [Member] \| 6.625% Senior Unsecured Notes Due May 2023 [Member] \| Dollar Tender Offer [Member] \| Tender Offer Purchase Price One [Member]
Debt Instrument [Line Items]
Tender offer purchase price per share \| $ / shares		$ 1,052.50
Tender offer principal amount price per share		1,000.00
Tender offer expiration date		Jun. 04, 2018
Senior unsecured notes [Member] \| 6.625% Senior Unsecured Notes Due May 2023 [Member] \| Dollar Tender Offer [Member] \| Tender Offer Purchase Price Two [Member]
Debt Instrument [Line Items]
Tender offer purchase price per share \| $ / shares		$ 1,022.50
Tender offer principal amount price per share		1,000.00
Tender offer expiration date		Jun. 18, 2018
Senior unsecured notes [Member] \| 2025 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount				$ 750,000,000
Debt instrument interest rate				7.00%									7.00%
Debt instrument maturity date				May 31, 2025
Senior unsecured notes [Member] \| Senior Notes 6.125% Due May 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount \| €													€ 360,000,000
Debt instrument interest rate				6.125%									6.125%
Debt instrument maturity date				May 31, 2023
Senior unsecured notes [Member] \| Senior Notes 6.125% Due May 2023 [Member] \| Euro Tender Offer [member] \| Tender Offer Purchase Price One [Member]
Debt Instrument [Line Items]
Tender offer purchase price per share \| $ / shares		$ 1,048.75
Tender offer principal amount price per share		1,000.00
Tender offer expiration date		Jun. 04, 2018
Senior unsecured notes [Member] \| Senior Notes 6.125% Due May 2023 [Member] \| Euro Tender Offer [member] \| Tender Offer Purchase Price Two [Member]
Debt Instrument [Line Items]
Tender offer purchase price per share \| $ / shares		$ 1,018.75
Tender offer principal amount price per share		1,000.00
Tender offer expiration date		Jun. 18, 2018
Senior unsecured notes [Member] \| Original Notes [Member]
Debt Instrument [Line Items]
Obligation threshold for debt to become guaranteed				$ 75,000,000
Repurchase price obligation, percentage of principal amount redeemed in event of change of control				101.00%									101.00%
Repurchase price obligation, percentage of principal amount redeemed in event of change of asset dispositions				100.00%									100.00%
Senior unsecured notes [Member] \| 2027 Notes [Member]
Debt Instrument [Line Items]
Long-term debt			$ 500,000,000
Debt instrument interest rate			5.375%
Obligation threshold for debt to become guaranteed			$ 100,000,000
Debt instrument net issue discount			5,000,000
Underwriting fees and other related expenses			$ 6,000,000
Repurchase price obligation, percentage of principal amount redeemed in event of change of control			101.00%
Repurchase price obligation, percentage of principal amount redeemed			100.00%
Senior unsecured notes [Member] \| 4.000% Senior Unsecured Notes Due May 2026 [Member] \| 2026 Euro Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount \| €												€ 450,000,000
Debt instrument interest rate											4.00%	4.00%
Debt instrument maturity date	May 31, 2026
Senior unsecured notes, payment terms					The 2026 Euro Notes require payment of principal at maturity and payments of interest semi-annually in cash and in arrears on May 15 and November 15 of each year.
Repurchase price obligation, percentage of principal amount redeemed in event of change of control											101.00%	101.00%
Repurchase price obligation, percentage of principal amount redeemed	100.00%
Debt instrument redemption price percentage of principal amount with net cash proceeds											35.00%	35.00%
Debt instrument redemption price percentage of principal amount excluding redemption date											104.00%	104.00%
Senior unsecured notes [Member] \| 4.000% Senior Unsecured Notes Due May 2026 [Member] \| Minimum [Member] \| 2026 Euro Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount											$ 100,000,000