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Description of a feature that permits the issuer of the debt to repay or convert it before the stated maturity date (early retirement date). The description may include such items as the call price, the period that the issuer can call the debt, including the earliest call date, and other significant terms of the call feature, which may include the debt holders' ability to convert the debt to equity if the call option is exercised and contingent events that trigger the issuer's ability to call the debt.

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

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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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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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No definition available.

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

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt Outstanding Debt (Details) - USD ($) $ in Millions	12 Months Ended
Debt Outstanding Debt (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total Borrowings at Par Value	$ 17,960	$ 19,186
Fair Value Hedge Accounting Adjustments	(13)	(93)
Unamortized Discount, Net	(94)	(21)
Unamortized Debt Issuance Costs	(101)	(82)
Total Borrowings at Carrying Value	17,752	18,990
Less: Short-term Obligations and Current Maturities	676	1,271
Long-term Obligations	17,076	17,719
Loss on early extinguishment of debt	(184)	(3)	$ (4)
Commercial Paper Programs [Member]
Debt Instrument [Line Items]
Total Borrowings at Par Value		693
Total Borrowings at Carrying Value		693
Senior Notes [Member]
Debt Instrument [Line Items]
Total Borrowings at Carrying Value	$ 17,736	18,276
Debt Instrument, Call Feature	Each of the notes may be redeemed at a redemption price of 100% of the principal amount plus a specified make-whole premium and accrued interest.
Senior Notes [Member] \| Floating Rate 2-Year Senior Notes, Due 7/24/2019 (euro-denominated) [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	2 years
Debt Instrument, Maturity Date	Jul. 24, 2019
Total Borrowings at Par Value		574
Senior Notes [Member] \| 6.00% 10-Year Senior Notes, Due 3/1/2020 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	6.00%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Mar. 01, 2020
Total Borrowings at Par Value		750
Senior Notes [Member] \| 4.70% 10-Year Senior Notes, Due 5/1/2020 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	4.70%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	May 01, 2020
Total Borrowings at Par Value		300
Senior Notes [Member] \| Floating Rate 2-Year Senior Notes, Due 8/7/2020 (euro-denominated) [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	2 years
Debt Instrument, Maturity Date	Aug. 07, 2020
Effective Interest Rate	0.17%
Total Borrowings at Par Value	$ 673	688
Senior Notes [Member] \| 1.50% 5-Year Senior Notes, Due 12/1/2020 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.50%
Debt Instrument, Term	5 years
Debt Instrument, Maturity Date	Dec. 01, 2020
Total Borrowings at Par Value		487
Senior Notes [Member] \| 5.00% 10-Year Senior Notes, Due 1/15/2021 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	5.00%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Jan. 15, 2021
Total Borrowings at Par Value		400
Senior Notes [Member] \| 4.50% 10-Year Senior Notes, Due 3/1/2021 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	4.50%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Mar. 01, 2021
Total Borrowings at Par Value		1,000
Senior Notes [Member] \| 3.60% 10-Year Senior Notes, Due 8/15/2021 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	3.60%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Aug. 15, 2021
Total Borrowings at Par Value		1,100
Senior Notes [Member] \| 3.30% 7-Year Senior Notes, Due 2/15/2022 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	3.30%
Debt Instrument, Term	7 years
Debt Instrument, Maturity Date	Feb. 15, 2022
Total Borrowings at Par Value		800
Senior Notes [Member] \| 2.15% 7-Year Senior Notes, Due 7/21/2022 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	2.15%
Debt Instrument, Term	7 years
Debt Instrument, Maturity Date	Jul. 21, 2022
Effective Interest Rate	2.28%
Total Borrowings at Par Value	$ 561	574
Senior Notes [Member] \| 3.15% 10-Year Senior Notes, Due 1/15/2023 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	3.15%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Jan. 15, 2023
Total Borrowings at Par Value		800
Senior Notes [Member] \| 3.00% 7-Year Senior Notes, Due 4/15/2023 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	3.00%
Debt Instrument, Term	7 years
Debt Instrument, Maturity Date	Apr. 15, 2023
Effective Interest Rate	5.02%
Total Borrowings at Par Value	$ 1,000	1,000
Senior Notes [Member] \| 4.15% 10-Year Senior Notes, Due 2/1/2024 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	4.15%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Feb. 01, 2024
Effective Interest Rate	4.16%
Total Borrowings at Par Value	$ 1,000	1,000
Senior Notes [Member] \| 0.75% 8-Year Senior Notes, Due 9/12/2024 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	0.75%
Debt Instrument, Term	8 years
Debt Instrument, Maturity Date	Sep. 12, 2024
Effective Interest Rate	0.94%
Total Borrowings at Par Value	$ 1,121	1,147
Senior Notes [Member] \| 0.125% 5.5-Year Senior Notes, Due 3/1/2025 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	0.125%
Debt Instrument, Term	5 years 6 months
Debt Instrument, Maturity Date	Mar. 01, 2025
Effective Interest Rate	0.41%
Total Borrowings at Par Value	$ 897
Senior Notes [Member] \| 2.00% 10-Year Senior Notes, Due 4/15/2025 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	2.00%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Apr. 15, 2025
Effective Interest Rate	2.10%
Total Borrowings at Par Value	$ 717	734
Senior Notes [Member] \| 3.65% 10-Year Senior Notes, Due 12/15/2025 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	3.65%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Dec. 15, 2025
Effective Interest Rate	3.77%
Total Borrowings at Par Value	$ 350	350
Senior Notes [Member] \| 1.40% 8.5-Year Senior Notes, Due 1/23/2026 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.40%
Debt Instrument, Term	8 years 6 months
Debt Instrument, Maturity Date	Jan. 23, 2026
Effective Interest Rate	1.53%
Total Borrowings at Par Value	$ 785	802
Senior Notes [Member] \| 2.95% 10-Year Senior Notes, Due 9/19/2026 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	2.95%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Sep. 19, 2026
Effective Interest Rate	3.19%
Total Borrowings at Par Value	$ 1,200	1,200
Senior Notes [Member] \| 1.45% 10-Year Senior Notes, Due 3/16/2027 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.45%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Mar. 16, 2027
Effective Interest Rate	1.65%
Total Borrowings at Par Value	$ 561	574
Senior Notes [Member] \| 3.20% 10-Year Senior Notes, Due 8/15/2027 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	3.20%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Aug. 15, 2027
Effective Interest Rate	3.39%
Total Borrowings at Par Value	$ 750	750
Senior Notes [Member] \| 0.50% 8.5-Year Senior Notes, Due 3/1/2028 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	0.50%
Debt Instrument, Term	8 years 6 months
Debt Instrument, Maturity Date	Mar. 01, 2028
Effective Interest Rate	0.77%
Total Borrowings at Par Value	$ 897
Senior Notes [Member] \| 1.375% 12-Year Senior Notes, Due 9/12/2028 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.375%
Debt Instrument, Term	12 years
Debt Instrument, Maturity Date	Sep. 12, 2028
Effective Interest Rate	1.46%
Total Borrowings at Par Value	$ 673	688
Senior Notes [Member] \| 1.95% 12-Year Senior Notes, Due 7/24/2029 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.95%
Debt Instrument, Term	12 years
Debt Instrument, Maturity Date	Jul. 24, 2029
Effective Interest Rate	2.08%
Total Borrowings at Par Value	$ 785	802
Senior Notes [Member] \| 2.60% 10-Year Senior Notes, Due 10/1/2029 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	2.60%
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date	Oct. 01, 2029
Effective Interest Rate	2.74%
Total Borrowings at Par Value	$ 900
Senior Notes [Member] \| 0.875% 12-Year Senior Notes, Due 10/1/2031 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	0.875%
Debt Instrument, Term	12 years
Debt Instrument, Maturity Date	Oct. 01, 2031
Effective Interest Rate	1.13%
Total Borrowings at Par Value	$ 1,009
Senior Notes [Member] \| 2.875% 20-Year Senior Notes, Due 7/24/2037 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	2.875%
Debt Instrument, Term	20 years
Debt Instrument, Maturity Date	Jul. 24, 2037
Effective Interest Rate	2.94%
Total Borrowings at Par Value	$ 785	802
Senior Notes [Member] \| 1.50% 20-Year Senior Notes, Due 10/1/2039 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.50%
Debt Instrument, Term	20 years
Debt Instrument, Maturity Date	Oct. 01, 2039
Effective Interest Rate	1.73%
Total Borrowings at Par Value	$ 1,009
Senior Notes [Member] \| 5.30% 30-Year Senior Notes, Due 2/1/2044 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	5.30%
Debt Instrument, Term	30 years
Debt Instrument, Maturity Date	Feb. 01, 2044
Effective Interest Rate	5.37%
Total Borrowings at Par Value	$ 400	400
Senior Notes [Member] \| 4.10% 30-Year Senior Notes, Due 8/15/2047 [Member]
Debt Instrument [Line Items]
Stated Interest Rate	4.10%
Debt Instrument, Term	30 years
Debt Instrument, Maturity Date	Aug. 15, 2047
Effective Interest Rate	4.23%
Total Borrowings at Par Value	$ 750	750
Senior Notes [Member] \| 1.875% 30-Year Senior Notes, Due 10/1/2049 (euro-denominated) [Member]
Debt Instrument [Line Items]
Stated Interest Rate	1.875%
Debt Instrument, Term	30 years
Debt Instrument, Maturity Date	Oct. 01, 2049
Effective Interest Rate	1.98%
Total Borrowings at Par Value	$ 1,121
Other Debt [Member]
Debt Instrument [Line Items]
Total Borrowings at Par Value	16	21
Total Borrowings at Carrying Value	$ 16	$ 21