Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Other bank borrowings	$ 55	$ 35
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Debt, Total long-term debt, net of current portion	Debt, Total long-term debt, net of current portion
Obligations under finance leases	$ 10	$ 16
Total debt	15,846	17,709
Less current portion of long-term debt	239	11
Total long-term debt, net of current portion	15,607	17,698
Net unamortized discount on senior debt	442	466
Unamortized deferred financing costs	89	95
Face value of debt	16,380	18,270
7.875% Debentures due 2023
Debt Instrument [Line Items]
Carrying value of senior debt	$ 139	139
Stated interest rate	7.875%
7.125% Senior Notes due 2023
Debt Instrument [Line Items]
Carrying value of senior debt	$ 35	35
Stated interest rate	7.125%
3.875% Senior Notes due 2024
Debt Instrument [Line Items]
Carrying value of senior debt	$ 0	490
Stated interest rate	3.875%
3.70% Senior Notes due 2024
Debt Instrument [Line Items]
Carrying value of senior debt	$ 0	599
Stated interest rate	3.70%
3.50% Senior Notes due 2025
Debt Instrument [Line Items]
Carrying value of senior debt	$ 0	597
Stated interest rate	3.50%
4.75% Senior Notes due 2025
Debt Instrument [Line Items]
Carrying value of senior debt	$ 552	1,242
Stated interest rate	4.75%
4.0% Senior Notes due 2026
Debt Instrument [Line Items]
Carrying value of senior debt	$ 795	793
Stated interest rate	4.00%
3.45% Senior Notes due 2026
Debt Instrument [Line Items]
Carrying value of senior debt	$ 124	123
Stated interest rate	3.45%
2.90% Senior Notes due 2027
Debt Instrument [Line Items]
Carrying value of senior debt	$ 694	692
Stated interest rate	2.90%
3.375% Senior Notes due 2028
Debt Instrument [Line Items]
Carrying value of senior debt	$ 496	496
Stated interest rate	3.375%
3.70% Senior Notes due 2028
Debt Instrument [Line Items]
Carrying value of senior debt	$ 494	493
Stated interest rate	3.70%
4.20% Senior Notes due 2029
Debt Instrument [Line Items]
Carrying value of senior debt	$ 495	494
Stated interest rate	4.20%
7.875% Senior Debentures due 2030
Debt Instrument [Line Items]
Carrying value of senior debt	$ 830	830
Stated interest rate	7.875%
4.95% Senior Notes due 2031
Debt Instrument [Line Items]
Carrying value of senior debt	$ 1,226	1,223
Stated interest rate	4.95%
4.20% Senior Notes due 2032
Debt Instrument [Line Items]
Carrying value of senior debt	$ 975	972
Stated interest rate	4.20%
5.50% Senior Debentures due 2033
Debt Instrument [Line Items]
Carrying value of senior debt	$ 427	427
Stated interest rate	5.50%
4.85% Senior Debentures due 2034
Debt Instrument [Line Items]
Carrying value of senior debt	$ 87	87
Stated interest rate	4.85%
6.875% Senior Debentures due 2036
Debt Instrument [Line Items]
Carrying value of senior debt	$ 1,071	1,070
Stated interest rate	6.875%
6.75% Senior Debentures due 2037
Debt Instrument [Line Items]
Carrying value of senior debt	$ 75	75
Stated interest rate	6.75%
5.90% Senior Notes due 2040
Debt Instrument [Line Items]
Carrying value of senior debt	$ 298	298
Stated interest rate	5.90%
4.50% Senior Debentures due 2042
Debt Instrument [Line Items]
Carrying value of senior debt	$ 45	45
Stated interest rate	4.50%
4.85% Senior Notes due 2042
Debt Instrument [Line Items]
Carrying value of senior debt	$ 488	488
Stated interest rate	4.85%
4.375% Senior Debentures due 2043
Debt Instrument [Line Items]
Carrying value of senior debt	$ 1,130	1,123
Stated interest rate	4.375%
4.875% Senior Debentures due 2043
Debt Instrument [Line Items]
Carrying value of senior debt	$ 18	18
Stated interest rate	4.875%
5.85% Senior Debentures due 2043
Debt Instrument [Line Items]
Carrying value of senior debt	$ 1,233	1,233
Stated interest rate	5.85%
5.25% Senior Debentures due 2044
Debt Instrument [Line Items]
Carrying value of senior debt	$ 345	345
Stated interest rate	5.25%
4.90% Senior Notes due 2044
Debt Instrument [Line Items]
Carrying value of senior debt	$ 541	540
Stated interest rate	4.90%
4.60% Senior Notes due 2045
Debt Instrument [Line Items]
Carrying value of senior debt	$ 590	590
Stated interest rate	4.60%
4.95% Senior Notes due 2050
Debt Instrument [Line Items]
Carrying value of senior debt	$ 946	944
Stated interest rate	4.95%
5.875% Junior Subordinated Debentures due 2057
Debt Instrument [Line Items]
Junior subordinated notes	$ 0	514
Stated interest rate	5.875%
6.25% Junior Subordinated Debentures due 2057
Debt Instrument [Line Items]
Junior subordinated notes	$ 643	643
Stated interest rate	6.25%
6.375% Junior Subordinated Debentures due 2062
Debt Instrument [Line Items]
Junior subordinated notes	$ 989	$ 0
Stated interest rate	6.375%
Face value of debt	$ 1,000

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

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Face (par) amount of debt instrument at time of issuance.

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

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Amount, after accumulated amortization, of debt discount (premium).

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

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