Financial Instruments Cross-currency forward-exchange contracts (Details) - Derivatives Designated as Hedging Instruments: - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Forward-starting interest rate swap contracts | ||||
| Foreign Currency Fair Value Hedge Derivative [Line Items] | ||||
| Unrealized gains on derivatives for net investment hedges, net of tax of $11 and $5 for the three months ended September 30, 2022 and 2021; and $24 and $10 for the nine months ended September 30, 2022 and 2021, respectively | $ 30 | $ 1 | $ 77 | $ 20 |
| Foreign exchange derivative instruments | ||||
| Foreign Currency Fair Value Hedge Derivative [Line Items] | ||||
| Unrealized gains on derivatives for net investment hedges, net of tax of $11 and $5 for the three months ended September 30, 2022 and 2021; and $24 and $10 for the nine months ended September 30, 2022 and 2021, respectively | $ 39 | $ 16 | $ 84 | $ 33 |