Debt (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt principal	$ 11,606	$ 13,117
Less unamortized debt issuance costs and discounts	111	119
Total debt	11,495	12,998
Short-term debt and current portion of long-term debt	1,005	3,003
Long-term debt	$ 10,490	9,995
Fixed Rate Notes Due May 2021
Debt Instrument [Line Items]
Interest rate	3.00%
Long-term debt	$ 0	2,000
Fixed Rate Notes Due July 2021
Debt Instrument [Line Items]
Interest rate	3.875%
Long-term debt	$ 0	500
Fixed Rate Notes Due November 2022
Debt Instrument [Line Items]
Interest rate	2.25%
Long-term debt	$ 1,000	1,000
Fixed Rate Notes Due May 2023
Debt Instrument [Line Items]
Interest rate	3.375%
Long-term debt	$ 750	750
Fixed Rate Notes Due August 2023
Debt Instrument [Line Items]
Interest rate	1.875%
Long-term debt	$ 500	500
Fixed Rate Notes Due November 2024
Debt Instrument [Line Items]
Interest rate	2.375%
Long-term debt	$ 500	500
Fixed Rate Notes Due April 2025
Debt Instrument [Line Items]
Interest rate	3.25%
Long-term debt	$ 750	750
Fixed Rate Notes Due May 2025
Debt Instrument [Line Items]
Interest rate	3.50%
Long-term debt	$ 750	750
Fixed Rate Notes Due June 2026
Debt Instrument [Line Items]
Interest rate	1.15%
Long-term debt	$ 500	0
Fixed Rate Notes Due August 2026
Debt Instrument [Line Items]
Interest rate	2.125%
Long-term debt	$ 500	500
Fixed Rate Notes Due April 2027
Debt Instrument [Line Items]
Interest rate	3.50%
Long-term debt	$ 750	750
Fixed Rate Notes Due November 2027
Debt Instrument [Line Items]
Interest rate	2.625%
Long-term debt	$ 500	500
Fixed Rate Notes Due May 2028
Debt Instrument [Line Items]
Interest rate	3.75%
Long-term debt	$ 1,000	1,000
Fixed Rate Notes Due April 2030
Debt Instrument [Line Items]
Interest rate	3.625%
Long-term debt	$ 1,000	1,000
Fixed Rate Notes Due June 2031
Debt Instrument [Line Items]
Interest rate	2.25%
Long-term debt	$ 500	0
Fixed Rate Notes Due April 2040
Debt Instrument [Line Items]
Interest rate	4.25%
Long-term debt	$ 750	750
Fixed Rate Notes Due June 2041
Debt Instrument [Line Items]
Interest rate	2.85%
Long-term debt	$ 500	0
Fixed Rate Notes Due November 2042
Debt Instrument [Line Items]
Interest rate	3.60%
Long-term debt	$ 500	500
Fixed Rate Notes Due April 2050
Debt Instrument [Line Items]
Interest rate	4.25%
Long-term debt	$ 750	750
Floating Rate Notes Due May 2021 \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	38.00%
Short-term debt	$ 0	500
Other Debt Securities
Debt Instrument [Line Items]
Other interest rate	Various
Long-term debt	$ 106	$ 117

Debt Instrument Interest Rate

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- Definition

Debt, Long-term and Short-term, Combined Amount, Excluding Current Maturities

+ References

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Debt, Long-term and Short-term, Combined Amount, Net

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

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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- Definition

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

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- Definition

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

Amount of unamortized debt discount (premium) and debt issuance costs.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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