Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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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.

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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.

+ References

No definition available.

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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

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- Definition

Fair value of the amount outstanding under the credit facility.

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- Definition

The effective interest rate at the end of the reporting period.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Debt - Recourse Debt (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
Debt - Recourse Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	$ (40)		$ (51)	$ (41)	$ (61)
London Interbank Offered Rate (LIBOR) [Member] \| LIBOR 1.75% Term Loan Due In 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.75%
Corporate and Other [Member]
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt				$ (37)
Corporate and Other [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Proceeds from Lines of Credit		$ 840
Redeemed notes	350
Line of Credit Facility, Fair Value of Amount Outstanding	$ 455			$ 455
Debt, Weighted Average Interest Rate	1.88%			1.88%
Corporate and Other [Member] \| Senior Notes [Member] \| 4.0% Senior Notes Due 2021 [Domain] [Domain]
Debt Instrument [Line Items]
Interest rate on senior notes	4.00%			4.00%
Corporate and Other [Member] \| Senior Notes [Member] \| 4.5% Senior Notes Due 2023 [Domain] [Domain]
Debt Instrument [Line Items]
Redeemed notes				$ 7
Interest rate on senior notes	4.50%			4.50%
Corporate and Other [Member] \| Senior Notes [Member] \| 4.875% Senior Notes Due 2023 [Member] [Member]
Debt Instrument [Line Items]
Interest rate on senior notes	4.875%			4.875%
Corporate and Other [Member] \| Senior Notes [Member] \| 3.30% Senior Notes due 2025 [Domain]
Debt Instrument [Line Items]
Interest rate on senior notes	3.30%			3.30%
Issued senior notes	$ 900			$ 900
Corporate and Other [Member] \| Senior Notes [Member] \| 3.95% Senior Notes due 2030 [Domain]
Debt Instrument [Line Items]
Interest rate on senior notes	3.95%			3.95%
Issued senior notes	$ 700			$ 700
Corporate and Other [Member] \| Liquidity [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Proceeds from Lines of Credit		250
Corporate and Other [Member] \| Other General [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Proceeds from Lines of Credit		$ 590