Debt - Debt Balances and Activity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Debt Balances and Activity [Roll Forward]
Long-term debt, beginning balance			$ 67,076,000,000
Note Redemptions	$ (395,000,000)		(395,000,000)
Repayments	(132,000,000)	$ (4,600,000,000)	(3,145,000,000)	$ (9,969,000,000)
Long-term debt, ending balance	64,834,000,000		64,834,000,000
Total Debt
Debt Balances and Activity [Roll Forward]
Total debt, beginning balance			74,193,000,000
Proceeds from Issuances and Borrowings			2,969,000,000
Note Redemptions	(2,750,000,000)		(2,750,000,000)
Repayments			(395,000,000)
Reclassifications			0
Other			(290,000,000)
Total debt, ending balance	73,727,000,000		73,727,000,000
Third Party | Total Debt
Debt Balances and Activity [Roll Forward]
Total debt to third parties, beginning balance			70,454,000,000
Proceeds from Issuances and Borrowings			2,969,000,000
Note Redemptions	(500,000,000)		(500,000,000)
Repayments			(395,000,000)
Reclassifications			0
Other			(296,000,000)
Total debt to third parties, ending balance	72,232,000,000		72,232,000,000
Short-term Debt | Affiliates
Debt Balances and Activity [Roll Forward]
Short-term debt to affiliates, beginning balance			2,245,000,000
Proceeds from Issuances and Borrowings			0
Note Redemptions	(2,250,000,000)		(2,250,000,000)
Repayments			0
Reclassifications			0
Other			5,000,000
Short-term debt to affiliates, ending balance	0		0
Short-term Debt | Third Party
Debt Balances and Activity [Roll Forward]
Short-term debt, beginning balance			3,378,000,000
Proceeds from Issuances and Borrowings			0
Note Redemptions	(500,000,000)		(500,000,000)
Repayments			(395,000,000)
Reclassifications			4,967,000,000
Other			(52,000,000)
Short-term debt, ending balance	7,398,000,000		7,398,000,000
Long-term debt | Affiliates
Debt Balances and Activity [Roll Forward]
Long-term debt to affiliates, beginning balance			1,494,000,000
Proceeds from Issuances and Borrowings			0
Note Redemptions	0		0
Repayments			0
Reclassifications			0
Other			1,000,000
Long-term debt to affiliates, ending balance	1,495,000,000		1,495,000,000
Long-term debt | Third Party
Debt Balances and Activity [Roll Forward]
Long-term debt, beginning balance			67,076,000,000
Proceeds from Issuances and Borrowings			2,969,000,000
Note Redemptions	0		0
Repayments			0
Reclassifications			(4,967,000,000)
Other			(244,000,000)
Long-term debt, ending balance	$ 64,834,000,000		$ 64,834,000,000