Long-Term Debt and Revolving Credit Arrangements - Fair Value of Senior Notes (Details) - Level 2 - Senior Note $ in Millions |
Jun. 30, 2021
USD ($)
|
|---|---|
| Debt Instrument [Line Items] | |
| Fair Value of long-term debt | $ 4,562 |
| 2025 Senior Note | |
| Debt Instrument [Line Items] | |
| Fair Value of long-term debt | 1,081 |
| 2026 Senior Note | |
| Debt Instrument [Line Items] | |
| Fair Value of long-term debt | 1,619 |
| 2027 Senior Note | |
| Debt Instrument [Line Items] | |
| Fair Value of long-term debt | 1,322 |
| 2028 Senior Note | |
| Debt Instrument [Line Items] | |
| Fair Value of long-term debt | $ 540 |