Debt and Credit Agreements - Activity Related to Long-Term Debt (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022
Movement, Debt Instruments [Roll Forward]
Long-term Debt as of December 31, 2022, Current Portion	$ 151
Long-term Debt as of December 31, 2022, Long-term Portion	17,896
Long-term Debt as of December 31, 2022, Total	18,047
Long-term Debt Issued	600	$ 2,000
Long-term Debt Repaid	(150)	$ (178)
Reclassifications	0
Hedging, Discount, Premium and Other Activity	(35)
Long-term Debt as of September 30, 2023, Current Portion	559
Long-term Debt as of September 30, 2023, Long-term Portion	17,903
Long-term Debt as of September 30, 2023, Total	18,462
Current Portion
Movement, Debt Instruments [Roll Forward]
Long-term Debt as of December 31, 2022, Current Portion	151
Long-term Debt Issued	0
Long-term Debt Repaid	(150)
Reclassifications	557
Hedging, Discount, Premium and Other Activity	1
Long-term Debt as of September 30, 2023, Current Portion	559
Long-term Portion
Movement, Debt Instruments [Roll Forward]
Long-term Debt as of December 31, 2022, Long-term Portion	17,896
Long-term Debt Issued	600
Long-term Debt Repaid	0
Reclassifications	(557)
Hedging, Discount, Premium and Other Activity	(36)
Long-term Debt as of September 30, 2023, Long-term Portion	$ 17,903

Long-term Debt, Increase (Decrease) Due To Reclassifications

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- Definition

Movement, Debt Instruments [Roll Forward]

+ References

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

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

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- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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