Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Short-term debt and current maturities of long-term debt:
Total short-term debt and current maturities of long-term debt	$ 552	$ 508
Finance lease and other financing obligations	291	268
Long-term debt:
Unamortized discount and deferred financing costs	(119)	(125)
Finance lease and other financing obligations	465	528
Total long-term debt	$ 20,518	20,729
Senior Notes \| 3.500% senior notes due October 2022
Debt Instrument [Line Items]
Interest rate, stated percentage	3.50%
Long-term debt:
Long-term debt	$ 700	700
Senior Notes \| 0.375% senior notes due July 2023 (Euro-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	0.375%
Long-term debt:
Long-term debt	$ 555	566
Senior Notes \| 3.800% senior notes due October 2023
Debt Instrument [Line Items]
Interest rate, stated percentage	3.80%
Long-term debt:
Long-term debt	$ 1,000	1,000
Senior Notes \| 2.750% senior notes due July 2024
Debt Instrument [Line Items]
Interest rate, stated percentage	2.75%
Long-term debt:
Long-term debt	$ 2,000	2,000
Senior Notes \| 3.850% senior notes due June 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	3.85%
Long-term debt:
Long-term debt	$ 900	900
Senior Notes \| 2.250% senior notes due July 2025 (British Pound-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%
Long-term debt:
Long-term debt	$ 687	705
Senior Notes \| 3.200% senior notes due July 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	3.20%
Long-term debt:
Long-term debt	$ 2,000	2,000
Senior Notes \| 2.250% senior notes due June 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%
Long-term debt:
Long-term debt	$ 1,000	1,000
Senior Notes \| 1.125% senior notes due July 2027 (Euro-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.125%
Long-term debt:
Long-term debt	$ 555	566
Senior Notes \| 4.200% senior notes due October 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	4.20%
Long-term debt:
Long-term debt	$ 1,000	1,000
Senior Notes \| 3.500% senior notes due July 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	3.50%
Long-term debt:
Long-term debt	$ 3,000	3,000
Senior Notes \| 2.650% senior notes due June 2030
Debt Instrument [Line Items]
Interest rate, stated percentage	2.65%
Long-term debt:
Long-term debt	$ 1,000	1,000
Senior Notes \| 1.625% senior notes due July 2030 (Euro-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.625%
Long-term debt:
Long-term debt	$ 555	566
Senior Notes \| 3.000% senior notes due July 2031 (British Pound-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Long-term debt	$ 687	705
Senior Notes \| 4.400% senior notes due July 2049
Debt Instrument [Line Items]
Interest rate, stated percentage	4.40%
Long-term debt:
Long-term debt	$ 2,000	2,000
Commercial Paper \| U.S. commercial paper notes
Long-term debt:
Long-term debt	685	916
Commercial Paper \| Euro commercial paper notes
Long-term debt:
Long-term debt	1,165	905
Line of Credit \| Revolving credit facility
Long-term debt:
Long-term debt	0	97
Line of Credit \| Term loan facility
Long-term debt:
Long-term debt	200	200
Receivable securitized loan
Long-term debt:
Long-term debt	483	500
Foreign lines of credit
Short-term debt and current maturities of long-term debt:
Total short-term debt and current maturities of long-term debt	$ 261	$ 240

Finance Lease, Liability And Other, Current

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Finance Lease, Liability And Other, Noncurrent

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

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

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