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DEBT AND FINANCING ARRANGEMENTS - Additional Information (Detail) € in Billions |  |  | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 01, 2021 USD ($) | Jan. 15, 2021 USD ($) | Sep. 30, 2021 USD ($) Credit_Agreements | Sep. 30, 2020 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 EUR (€) Credit_Agreements | Dec. 31, 2020 USD ($) | Apr. 01, 2020 | Dec. 31, 2019
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Commercial Paper |  |  | $ 0 |  |  |  | $ 15,000,000 |  |
Repayments of long-term debt |  |  | 2,613,000,000 | $ 2,746,000,000 |  |  |  |  |
Face value of debt instrument |  |  | $ 22,274,000,000 |  |  |  |  |  |
Number of credit agreements | Credit_Agreements |  |  | 2 |  |  | 2 |  |  |
Sale-lease back outstanding |  |  | $ 0 |  |  |  |  |  |
Long-term debt fair value |  |  | 25,400,000,000 |  |  |  | 28,300,000,000 |  |
Finance Lease, Liability |  |  | $ 542,000,000 |  |  |  | $ 342,000,000 |  |
Covenants limit, amount of secured indebtedness and debt in sale-leaseback transactions, percentage of net tangible assets |  |  | 10.00% |  |  | 10.00% |  |  |
Covenants that limit the amount of secured indebtedness and amount of attributable debt in sale-leaseback transactions, net tangible assets amount |  |  | $ 4,500,000,000 |  |  |  |  |  |
U.S. Commercial Paper Program |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Commercial Paper |  |  | 0 |  |  |  |  |  |
Commercial paper program, authorized to borrow |  |  | $ 10,000,000,000.0 |  |  |  |  |  |
Foreign Commercial Paper Program |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Commercial paper program, authorized to borrow | € |  |  |  |  |  | € 5.0 |  |  |
Revolving Credit Facility Expiring In 2015 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Maturity |  |  | Dec. 07, 2021 |  |  |  |  |  |
Revolving credit facilities |  |  | $ 2,000,000,000.0 |  |  |  |  |  |
Amounts outstanding under this facility |  |  | $ 0 |  |  |  |  |  |
Revolving Credit Facility Expiring In 2015 | Forecast |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Revolving credit facilities |  |  |  |  | $ 1,000,000,000 |  |  |  |
Revolving Credit Facility Expiring In 2017 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Maturity |  |  | Dec. 11, 2023 |  |  |  |  |  |
Revolving credit facilities |  |  | $ 2,500,000,000 |  |  |  |  |  |
Amounts outstanding under this facility |  |  | $ 0 |  |  |  |  |  |
Revolving Credit Facility Expiring In 2017 | Forecast |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Revolving credit facilities |  |  |  |  | $ 2,000,000,000 |  |  |  |
Revolving Credit Facility Expiring In 2017 | Minimum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin for base rate below LIBOR |  |  | 0.00% |  |  |  |  |  |
Revolving Credit Facility Expiring In 2017 | Maximum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin for base rate below LIBOR |  |  | 1.00% |  |  |  |  |  |
Commercial Paper |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face value of debt instrument |  |  | $ 0 |  |  |  |  |  |
Senior notes | 2.350% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 2.35% |  |  | 2.35% |  |  |
Face value of debt instrument |  |  | $ 600,000,000 |  |  |  |  |  |
Senior notes | 3.050% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 3.05% |  |  | 3.05% |  |  |
Face value of debt instrument |  |  | $ 1,000,000,000 |  |  |  |  |  |
Senior notes | 3.900% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 3.90% |  |  | 3.90% |  |  |
Face value of debt instrument |  |  | $ 1,000,000,000 |  |  |  |  |  |
Senior notes | 4.450% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 4.45% |  |  | 4.45% |  |  |
Face value of debt instrument |  |  | $ 750,000,000 |  |  |  |  |  |
Senior notes | 5.200% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 5.20% |  |  | 5.20% |  |  |
Face value of debt instrument |  |  | $ 500,000,000 |  |  |  |  |  |
Senior notes | 5.300% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 5.30% |  |  | 5.30% |  |  |
Face value of debt instrument |  |  | $ 1,250,000,000 |  |  |  |  |  |
Senior notes | 3.400% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 3.40% |  |  | 3.40% |  |  |
Face value of debt instrument |  |  | $ 750,000,000 |  |  |  |  |  |
Senior notes | 4.250% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 4.25% |  |  | 4.25% |  |  |
Face value of debt instrument |  |  | $ 750,000,000 |  |  |  |  |  |
Senior notes | 2.500% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 2.50% |  |  | 2.50% |  |  |
Face value of debt instrument |  |  | $ 400,000,000 |  |  |  |  |  |
Senior notes | 2.200% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 2.20% |  |  | 2.20% |  |  |
Face value of debt instrument |  |  | $ 400,000,000 |  |  |  |  |  |
Senior notes | 3.400% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 3.40% |  |  | 3.40% |  |  |
Face value of debt instrument |  |  | $ 700,000,000 |  |  |  |  |  |
Senior notes | 7.620% debentures(1) |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  | 7.62% |  |  | 7.62% |  | 7.62% | 8.375%
Face value of debt instrument |  |  | $ 276,000,000 |  |  |  |  |  |
Senior notes | 3.125% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  | 3.125% | 3.125% |  |  | 3.125% |  |  |
Maturity |  | Jan. 15, 2021 |  |  |  |  |  |  |
Face value of debt instrument |  |  | $ 0 |  |  |  |  |  |
Repayments of senior notes |  | $ 1,500,000,000 |  |  |  |  |  |  |
Senior notes | 2.050% senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate | 2.05% |  | 2.05% |  |  | 2.05% |  |  |
Maturity | Apr. 01, 2021 |  |  |  |  |  |  |  |
Face value of debt instrument |  |  | $ 0 |  |  |  |  |  |
Repayments of senior notes | $ 700,000,000 |  |  |  |  |  |  |  |
Senior notes | Floating-rate senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face value of debt instrument |  |  | $ 0 |  |  |  |  |  |
Repayments of senior notes | $ 350,000,000 |  |  |  |  |  |  |  |
LIBOR rate | Revolving Credit Facility Expiring In 2015 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.875% |  |  |  |  |  |
LIBOR rate | Revolving Credit Facility Expiring In 2017 | Minimum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.10% |  |  |  |  |  |
LIBOR rate | Revolving Credit Facility Expiring In 2017 | Maximum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.75% |  |  |  |  |  |
LIBOR | Revolving Credit Facility Expiring In 2015 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 1.00% |  |  |  |  |  |
LIBOR | Revolving Credit Facility Expiring In 2017 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 1.00% |  |  |  |  |  |
Federal Funds Rate | Revolving Credit Facility Expiring In 2015 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.50% |  |  |  |  |  |
Federal Funds Rate | Revolving Credit Facility Expiring In 2017 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.50% |  |  |  |  |  |

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