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Long-Term Debt - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Nov. 08, 2022	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Oct. 31, 2022	Dec. 31, 2021
Long-term Debt
Payments of long-term debt			$ 8,325	$ 4,555
Long-term debt, gross		$ 19,089	19,089			$ 28,493
Net book value of debt		20,331	20,331			29,028
Level 1 \| Estimate of Fair Value Measurement
Long-term Debt
Fair value of long-term debt		18,600	18,600			$ 31,100
Senior Notes Due from 2024 Through 2048 \| Senior Notes
Long-term Debt
Payments of long-term debt		1,300
Senior Notes Due from 2022 Through 2049 \| Senior Notes
Long-term Debt
Payments of long-term debt			8,300
Long-term debt, gross		9,400	9,400
Net book value of debt		$ 8,700	8,700
Loss on debt extinguished			$ 143
Senior Notes Due from 2024 Through 2049 \| Senior Notes \| Subsequent Event
Long-term Debt
Payments of long-term debt	$ 18,900
Debt issuance, face amount	$ 191
Senior Notes Due February 2023 \| Senior Notes \| Subsequent Event
Long-term Debt
Debt issuance, face amount					$ 340
Interest rate					2.70%