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Amount of increase (decrease) in debt instruments, classified as other.

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

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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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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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

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The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Debt - Debt Balances and Activity (Details) - USD ($)	3 Months Ended		6 Months Ended
Debt - Debt Balances and Activity (Details) - USD ($)	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Debt Balances and Activity [Roll Forward]
Long-term debt, beginning balance			$ 61,830,000,000
Proceeds from Issuances and Borrowings	$ 0	$ 18,743,000,000	0	$ 18,743,000,000
Note Redemptions	(660,000,000)		(660,000,000)
Repayments	0	(18,929,000,000)	0	(18,929,000,000)
Repayments	(3,150,000,000)	$ (10,529,000,000)	(5,369,000,000)	$ (10,529,000,000)
Long-term debt, ending balance	65,897,000,000		65,897,000,000
Total Debt
Debt Balances and Activity [Roll Forward]
Total debt, beginning balance			71,125,000,000
Indebtedness to affiliates			9,768,000,000
Note Redemptions	(4,742,000,000)		(4,742,000,000)
Repayments			(660,000,000)
Reclassifications			0
Other			(221,000,000)
Total debt, ending balance	75,270,000,000		75,270,000,000
Third Party \| Total Debt
Debt Balances and Activity [Roll Forward]
Total debt to third parties, beginning balance			66,409,000,000
Proceeds from Issuances and Borrowings			9,768,000,000
Note Redemptions	(4,742,000,000)		(4,742,000,000)
Repayments			(660,000,000)
Reclassifications			0
Other			(230,000,000)
Total debt to third parties, ending balance	70,545,000,000		70,545,000,000
Short-term Debt \| Affiliates
Debt Balances and Activity [Roll Forward]
Short-term debt to affiliates, beginning balance			0
Proceeds from Issuances and Borrowings			0
Note Redemptions	0		0
Repayments			0
Reclassifications			2,231,000,000
Other			4,000,000
Short-term debt to affiliates, ending balance	2,235,000,000		2,235,000,000
Short-term Debt \| Third Party
Debt Balances and Activity [Roll Forward]
Short-term debt, beginning balance			4,579,000,000
Proceeds from Issuances and Borrowings			0
Note Redemptions	0		0
Repayments			(660,000,000)
Reclassifications			786,000,000
Other			(57,000,000)
Short-term debt, ending balance	4,648,000,000		4,648,000,000
Long-term debt \| Affiliates
Debt Balances and Activity [Roll Forward]
Long-term debt to affiliates, beginning balance			4,716,000,000
Payments for requisite consents to DT			0
Note Redemptions	0		0
Repayments			0
Reclassifications			(2,231,000,000)
Other			5,000,000
Long-term debt to affiliates, ending balance	2,490,000,000		2,490,000,000
Long-term debt \| Third Party
Debt Balances and Activity [Roll Forward]
Long-term debt, beginning balance			61,830,000,000
Proceeds from Issuances and Borrowings			9,768,000,000
Note Redemptions	(4,742,000,000)		(4,742,000,000)
Repayments			0
Reclassifications			(786,000,000)
Other			(173,000,000)
Long-term debt, ending balance	$ 65,897,000,000		$ 65,897,000,000