Debt Obligations Level 4 (Details) - Scheduled Maturities $ in Millions	Dec. 31, 2019 USD ($)
Debt and Commitments Maturities [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 73
Long-term Debt, Maturities, Repayments of Principal in Year Two	57
Long-term Debt, Maturities, Repayments of Principal in Year Three	33
Long-term Debt, Maturities, Repayments of Principal in Year Four	16
Long-term Debt, Maturities, Repayments of Principal in Year Five	8
Long-term Debt, Maturities, Repayments of Principal after Year Five	1,615
Long term, debt maturities, amount representing interest	(6)
Present Value of Minimum Payments	1,796
Non-affiliated Debt [Member]
Debt and Commitments Maturities [Line Items]
Total minimum payments	$ 1,802

[Line Items] for Debt and Commitments Maturities [Table]

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Long term, debt maturities, amount representing interest

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Present Value of Minimum Payments

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Total minimum payment

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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