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v3.23.1

Financing arrangements (Narrative) (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 USD ($) renewal_option | Dec. 31, 2022 USD ($) | Mar. 31, 2023 CHF (SFr)
Debt Instrument [Line Items] |  |  |
Face amount | $ 24,000,000,000 |  |
Extinguishment of debt | 420,000,000 |  |
Gain (loss) on extinguishment of debt | $ 113,000,000 |  |
Line of Credit Facility, Commitment Fee Percentage | 0.09% |  |
Horizon Therapeutics |  |  |
Debt Instrument [Line Items] |  |  |
Bridge credit, reduced amount |  | $ 24,500,000,000 |
term loan credit agreement, total amount | $ 4,000,000,000 | 4,000,000,000 |
Horizon Therapeutics | Other Nonoperating Income (Expense) |  |  |
Debt Instrument [Line Items] |  |  |
Amortization of Other Deferred Charges | 98,000,000 |  |
0.41% CHF700 million bonds due 2023 (0.41% 2023 Swiss franc Bonds) | Cross-currency swap contracts | Cash flow hedge |  |  |
Debt Instrument [Line Items] |  |  |
Notional amounts | $ 704,000,000 |  |
Notes | 4.563% notes due 2048 (4.563% 2048 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Effective interest rate | 6.30% |  | 6.30%
Interest rate, stated percentage | 4.563% |  | 4.563%
Notes | 4.663% notes due 2051 (4.663% 2051 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Effective interest rate | 5.60% |  | 5.60%
Interest rate, stated percentage | 4.663% |  | 4.663%
Notes | 2.77% notes due 2053 (2.77% 2053 Notes) {Member] |  |  |
Debt Instrument [Line Items] |  |  |
Effective interest rate | 5.20% |  | 5.20%
Interest rate, stated percentage | 2.77% |  | 2.77%
Notes | 3.00% 2029 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 3.00% |  | 3.00%
Notes | 3.35% 2032 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 3.35% |  | 3.35%
Notes | 4.20% 2052 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 4.20% |  | 4.20%
Notes | 4.40% 2062 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 4.40% |  | 4.40%
Notes | 4.05% 2029 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 4.05% |  | 4.05%
Notes | 4.20% 2033 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 4.20% |  | 4.20%
Notes | 4.875% 2053 Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 4.875% |  | 4.875%
Notes | 2.20% notes due 2027 (2.20% 2027 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 2.20% |  | 2.20%
Notes | 1.65% notes due 2028 (1.65% 2028 Notes) [Member} |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 1.65% |  | 1.65%
Notes | 2.00% notes due 2032 (2.00% 2032 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 2.00% |  | 2.00%
Notes | 2.80% notes due 2041 (2.80% 2041 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 2.80% |  | 2.80%
Notes | 3.00% notes due 2052 (3.00% 2052 Notes) |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 3.00% |  | 3.00%
Notes | 5.25% notes due 2025 (5.25% 2025 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 2,000,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.25% |  | 5.25%
Notes | 5.15% notes due 2028 (5.15% 2028 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 3,750,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.15% |  | 5.15%
Notes | 5.25% notes due 2030 (5.25% 2030 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 2,750,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.25% |  | 5.25%
Notes | 5.25% notes due 2033 (5.25% 2033 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 4,250,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.25% |  | 5.25%
Notes | 5.60% notes due 2043 (5.60% 2043 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 2,750,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.60% |  | 5.60%
Notes | 5.65% notes due 2053 (5.65% 2053 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 4,250,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.65% |  | 5.65%
Notes | 5.75% notes due 2063 (5.75% 2063 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 2,750,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.75% |  | 5.75%
Notes | 6.90% notes due 2038 (6.90% 2038 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 6.90% |  | 6.90%
Notes | 0.41% CHF700 million bonds due 2023 (0.41% 2023 Swiss franc Bonds) |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | SFr |  |  | SFr 700,000,000
Interest rate, stated percentage | 0.41% |  | 0.41%
Notes | 5.507% notes due 2026 (5.507% 2026 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face amount | $ 1,500,000,000 |  |
Percentage of Principal Amount of Notes that may be Paid if Horizon Acquisition Does Not Occur | 101.00% |  |
Percentage of Principal Amount of Notes that may be Paid Upon Occurrence of Change in Control Triggering Event | 101.00% |  |
Interest rate, stated percentage | 5.507% |  | 5.507%
Notes | 3.15% notes due 2040 (3.15% 2040 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 3.15% |  | 3.15%
Notes | 3.375% notes due 2050 (3.375% 2050 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, stated percentage | 3.375% |  | 3.375%
Debt Securities Payable | 5.507% notes due 2026 (5.507% 2026 Notes) [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Redemption Period without Payment of Make Whole Amount | 2 years |  |
Line of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 4,000,000,000 |  |
Amount by which borrowing capacity under a syndicated unsecured revolving credit agreement may be increased upon our request at discretion of banks | $ 1,250,000,000 |  |
Line of Credit Facility, Initial Commitment Term | 5 years |  |
Line of Credit Facility, Number Of Renewal Options | renewal_option | 2 |  |
Line of Credit Facility, Extension of Commitment Term | 1 year |  |
Long-Term Line of Credit | $ 0 | 0 |
Line of Credit | Secured overnight financing rate | Variable Rate Component One |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.01% |  |
Line of Credit | Secured overnight financing rate | Variable Rate Component Two |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.10% |  |
Line of Credit | Federal Funds Purchased |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |
prior line of credit |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 2,500,000,000 |
Amount by which borrowing capacity under a syndicated unsecured revolving credit agreement may be increased upon our request at discretion of banks |  | 750,000,000 |
bridge credit agreement | Horizon Therapeutics |  |  |
Debt Instrument [Line Items] |  |  |
Bridge credit agreement amount | $ 0 | $ 0 |
Minimum | Debt Securities Payable |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Redemption Period without Payment of Make Whole Amount | 2 months |  |
Maximum | Debt Securities Payable |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Redemption Period without Payment of Make Whole Amount | 6 months |  |

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