Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Other notes	$ 61	$ 93
Total debt	57,001	58,102
1.17% - 2.50% due through 2026
Debt Instrument [Line Items]
Unsecured debt securities	11,846	12,404
2.60% - 3.20% due through 2030
Debt Instrument [Line Items]
Unsecured debt securities	6,412	7,001
3.25% - 3.90% due through 2059
Debt Instrument [Line Items]
Unsecured debt securities	9,576	9,570
3.95% - 5.15% due through 2059
Debt Instrument [Line Items]
Unsecured debt securities	14,035	13,993
5.71% - 6.63% due through 2060
Debt Instrument [Line Items]
Unsecured debt securities	13,011	13,008
6.88% - 8.75% due through 2043
Debt Instrument [Line Items]
Unsecured debt securities	1,854	1,853
Finance lease obligations due through 2044
Debt Instrument [Line Items]
Finance lease obligations due through 2044	$ 206	$ 180
Minimum \| 1.17% - 2.50% due through 2026
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	1.17%
Minimum \| 2.60% - 3.20% due through 2030
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.60%
Minimum \| 3.25% - 3.90% due through 2059
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.25%
Minimum \| 3.95% - 5.15% due through 2059
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.95%
Minimum \| 5.71% - 6.63% due through 2060
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	5.71%
Minimum \| 6.88% - 8.75% due through 2043
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.88%
Maximum \| 1.17% - 2.50% due through 2026
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.50%
Maximum \| 2.60% - 3.20% due through 2030
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.20%
Maximum \| 3.25% - 3.90% due through 2059
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.90%
Maximum \| 3.95% - 5.15% due through 2059
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	5.15%
Maximum \| 5.71% - 6.63% due through 2060
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.63%
Maximum \| 6.88% - 8.75% due through 2043
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	8.75%

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

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

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- Definition

Amount of long-term notes payable classified as other.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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