Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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Long-Term Debt (Details Textuals) - USD ($) $ in Millions	1 Months Ended		6 Months Ended
Long-Term Debt (Details Textuals) - USD ($) $ in Millions	Aug. 31, 2021	Jul. 27, 2021	Jun. 30, 2021	Jun. 30, 2020
Debt Instrument [Line Items]
Redemption of long-term debt			$ 583	$ 300
Subsequent Event
Debt Instrument [Line Items]
Redemption of long-term debt		$ 2,247
Prepayment costs for early retiremnt of debt		$ 235
Subsequent Event \| Forecast
Debt Instrument [Line Items]
Redemption of long-term debt	$ 374
Subsequent Event \| Forecast \| 3.85% Senior Notes maturing in 2023
Debt Instrument [Line Items]
Redemption of long-term debt	$ 165
Interest rate	3.85%
Subsequent Event \| Forecast \| 6.375% Senior Notes maturing in 2033
Debt Instrument [Line Items]
Redemption of long-term debt	$ 209
Interest rate	6.375%