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Debt and Credit Facilities - Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2022	May 31, 2022	Jan. 01, 2022	Dec. 31, 2021	May 31, 2021	Aug. 31, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 6,015			$ 5,695
Adjustments for unamortized gains on interest rate swap terminations	(1)			(2)
Less: current portion	(1)			(5)
Long-term debt	6,013			5,688
Other long-term debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 0			5
4.0% senior notes due 2024 | Senior Notes
Debt Instrument [Line Items]
Interest rate	4.00%	4.00%
Long-term debt, gross	$ 312			585
1.75% senior convertible notes due 2024 | Senior Notes
Debt Instrument [Line Items]
Interest rate	1.75%
1.75% senior convertible notes due 2024 | Convertible Debt
Debt Instrument [Line Items]
Interest rate	1.75%		1.75%
Long-term debt, gross	$ 1,000			1,000
6.5% debentures due 2025 | Senior Notes
Debt Instrument [Line Items]
Interest rate	6.50%
6.5% debentures due 2025 | Debenture
Debt Instrument [Line Items]
Long-term debt, gross	$ 70			70
7.5% debentures due 2025 | Senior Notes
Debt Instrument [Line Items]
Interest rate	7.50%
7.5% debentures due 2025 | Debenture
Debt Instrument [Line Items]
Long-term debt, gross	$ 252			252
4.6% senior notes due 2028 | Senior Notes
Debt Instrument [Line Items]
Interest rate	4.60%
Long-term debt, gross	$ 694			693
6.5% debentures due 2028 | Senior Notes
Debt Instrument [Line Items]
Interest rate	6.50%
6.5% debentures due 2028 | Debenture
Debt Instrument [Line Items]
Long-term debt, gross	$ 24			24
4.6% senior notes due 2029 | Senior Notes
Debt Instrument [Line Items]
Interest rate	4.60%
Long-term debt, gross	$ 803			803
2.3% senior notes due 2030 | Senior Notes
Debt Instrument [Line Items]
Interest rate	2.30%					2.30%
Long-term debt, gross	$ 893			893
2.75% senior notes due 2031 | Senior Notes
Debt Instrument [Line Items]
Interest rate	2.75%				2.75%
Long-term debt, gross	$ 845			844
5.60% senior notes due 2032 | Senior Notes
Debt Instrument [Line Items]
Interest rate	5.60%	5.60%
Long-term debt, gross	$ 595			0
6.625% senior notes due 2037 | Senior Notes
Debt Instrument [Line Items]
Interest rate	6.625%
Long-term debt, gross	$ 38			38
5.5% senior notes due 2044 | Senior Notes
Debt Instrument [Line Items]
Interest rate	5.50%
Long-term debt, gross	$ 397			396
5.22% debentures due 2097 | Senior Notes
Debt Instrument [Line Items]
Interest rate	5.22%
5.22% debentures due 2097 | Debenture
Debt Instrument [Line Items]
Long-term debt, gross	$ 92			$ 92

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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