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Derivative and Financial Instruments - Narrative (Details) $ in Millions, $ in Billions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2023 CAD ($) $ / $	Jun. 30, 2023 USD ($) $ / $
Derivative [Line Items]
Derivative, fair value					$ 1,998		$ 942
Percentage of term loans converted from floating to fixed						60.00%	60.00%
Debt securities, available-for-sale, unrealized loss			$ 14		12
Debt securities, available-for-sale, allowance for credit loss					0		$ 0
Proceeds from sales and redemptions of investments in debt securities classified as available for sale	$ 251	$ 86	551	$ 201
Derivative, net liability position, aggregate fair value					333		166
Collateral already posted, aggregate fair value					$ 42		$ 0
Foreign Exchange Forward
Derivative [Line Items]
Derivative, notional amount						$ 5.2
Derivative, forward exchange rate | $ / $						0.751	0.751
Derivative, fair value							$ 19
Unrealized gain	$ 19		$ 19
In event of downgrade below investment grade
Derivative [Line Items]
Additional collateral, aggregate fair value							$ 131
Minimum
Derivative [Line Items]
Investments and long-term receivables, remaining maturity			1 year
Maximum
Derivative [Line Items]
Investments and long-term receivables, remaining maturity			5 years
Accounts Receivable | Maximum
Derivative [Line Items]
Credit derivative, term			30 days

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The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

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