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v3.21.1

Financial Instruments - Narrative (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) interest_rate_swap | Dec. 31, 2020 USD ($) | Mar. 31, 2020 USD ($) | Jan. 31, 2021 USD ($) interest_rate_swap
Derivative [Line Items] |  |  |  |
Pretax net unrealized losses on derivatives maturing within next 12 months estimated to be reclassified from AOCI to sales | $ 72,000,000 |  |  |
Equity investments without readily determinable fair values | 651,000,000 |  | $ 450,000,000 |
Unrealized gains recognized on investments in equity securities without readily determinable fair value | 33,000,000 |  |  |
Cumulative unrealized gains on investments | 202,000,000 |  |  |
Cumulative unrealized losses on investments | 11,000,000 |  |  |
Payments of contingent consideration | 0 |  | $ 106,000,000 |
Fair value of loans payable and long-term debt, including current portion | 33,500,000,000 | $ 36,000,000,000.0 |  |
Debt, carrying amount | 31,300,000,000 | 31,800,000,000 |  |
Accounts Receivable, Sale | 1,800,000,000 | 2,300,000,000 |  |
Cash collateral received from counterparties | 19,000,000 | 0 |  |
Cash collateral advanced to counterparties | 0 | 36,000,000 |  |
Total swap notional amount | 33,995,000,000 | 32,784,000,000 |  |
Level 2 |  |  |  |
Derivative [Line Items] |  |  |  |
Cash equivalents | 6,000,000,000.0 | 6,800,000,000 |  |
Derivatives Designated as Hedging Instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Total swap notional amount | $ 13,230,000,000 | 13,714,000,000 |  |
Derivatives Designated as Hedging Instruments | Maximum |  |  |  |
Derivative [Line Items] |  |  |  |
Maximum average period of maturities of contracts in years (less than) | 2 years |  |  |
Derivatives Not Designated as Hedging Instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Total swap notional amount | $ 20,765,000,000 | $ 19,070,000,000 |  |
Derivatives Not Designated as Hedging Instruments | Maximum |  |  |  |
Derivative [Line Items] |  |  |  |
Maximum average period of maturities of contracts in years (less than) | 1 year |  |  |
3.875% Notes Due 2021 [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Face amount of debt |  |  |  | $ 1,150,000,000
Stated interest rate (as percent) |  |  |  | 3.875%
Interest rate swap contracts |  |  |  |
Derivative [Line Items] |  |  |  |
Number of interest rate swaps held (in interest rate swaps) | interest_rate_swap | 9 |  |  | 5
Total swap notional amount |  |  |  | $ 1,150,000,000

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