Debt Obligation Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Maturities [Abstract]
Debt maturities - 2020	$ 523
Debt maturities - 2021	732
Debt maturities - 2022	1,528
Debt maturities - 2023	1,531
Debt maturities - 2024	1,254
Debt maturities - Thereafter	17,271
Total	22,839
Fair Value	$ 26,648	$ 24,100
Weighted Average Interest Rate on Debt and Capital Lease Obligations [Abstract]
Weighted Average Interest Rate On Debt And Capital Lease Obligations - 2020	5.60%
Weighted Average Interest Rate On Debt And Capital Lease Obligations - 2021	3.70%
Weighted Average Interest Rate On Debt And Capital Lease Obligations - 2022	4.00%
Weighted Average Interest Rate On Debt And Capital Lease Obligations - 2023	3.50%
Weighted Average Interest Rate On Debt And Capital Lease Obligations - 2024	3.50%
Weighted Average Interest Rate On Debt And Capital Lease Obligations - Thereafter	4.80%
Total Debt, Weighted Average Effective Interest Rate	4.60%

Debt Maturities [Abstract]

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Weighted Average Interest Rate on Debt and Capital Lease Obligations [Abstract]

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Weighted average interest rate on debt and capital lease obligations maturing after the fifth fiscal year following the latest fiscal year.

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Weighted average interest rate n debt and capital lease obligations maturing in the next fiscal year following the latest fiscal year.

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Weighted average interest rate on debt and capital lease obligations maturing in the fifth fiscal year following the latest fiscal year.

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Weighted average interest rate on debt and capital lease obligations maturing in the fourth fiscal year following the latest fiscal year.

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Weighted average interest rate on debt and capital lease obligations maturing in the third fiscal year following the latest fiscal year.

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Weighted average interest rate on debt and capital lease obligations maturing in the second fiscal year following the latest fiscal year.

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Amount of short-term and long-term debt and lease obligation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
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-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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Weighted average interest rate of debt outstanding.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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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 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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
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-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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