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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Borrowings and Lines of Credit (Repayments of Long-term Debt) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt Extinguishment Costs	$ 0	$ 649	$ 0
Notes 5.700% Due 2040
Debt Instrument [Line Items]
Repayments of Debt		$ 447
Debt Instrument, Interest Rate, Stated Percentage		5.70%
Debt Instrument, Maturity Year Date		2040
Notes 6.125% Due 2038
Debt Instrument [Line Items]
Repayments of Debt		$ 425
Debt Instrument, Interest Rate, Stated Percentage		6.125%
Debt Instrument, Maturity Year Date		2038
Notes 6.050% Due 2036
Debt Instrument [Line Items]
Repayments of Debt		$ 190
Debt Instrument, Interest Rate, Stated Percentage		6.05%
Debt Instrument, Maturity Year Date		2036
Notes 5.400% Due 2035
Debt Instrument [Line Items]
Repayments of Debt		$ 154
Debt Instrument, Interest Rate, Stated Percentage		5.40%
Debt Instrument, Maturity Year Date		2035
Notes 7.500% Due 2029
Debt Instrument [Line Items]
Repayments of Debt		$ 136
Debt Instrument, Interest Rate, Stated Percentage		7.50%
Debt Instrument, Maturity Year Date		2029
Notes 6.700% Due 2028
Debt Instrument [Line Items]
Repayments of Debt		$ 115
Debt Instrument, Interest Rate, Stated Percentage		6.70%
Debt Instrument, Maturity Year Date		2028
Notes 6.800% Due 2036
Debt Instrument [Line Items]
Repayments of Debt		$ 17
Debt Instrument, Interest Rate, Stated Percentage		6.80%
Debt Instrument, Maturity Year Date		2036
Notes 7.000% Due 2038
Debt Instrument [Line Items]
Repayments of Debt		$ 11
Debt Instrument, Interest Rate, Stated Percentage		7.00%
Debt Instrument, Maturity Year Date		2038
Notes 7.100% Due 2027
Debt Instrument [Line Items]
Repayments of Debt		$ 6
Debt Instrument, Interest Rate, Stated Percentage		7.10%
Debt Instrument, Maturity Year Date		2027
Notes 3.100% Due 2021
Debt Instrument [Line Items]
Repayments of Debt		$ 250
Debt Instrument, Interest Rate, Stated Percentage		3.10%
Debt Instrument, Maturity Year Date		2021
Notes 2.800% Due 2022
Debt Instrument [Line Items]
Repayments of Debt		$ 1,100
Debt Instrument, Interest Rate, Stated Percentage		2.80%
Debt Instrument, Maturity Year Date		2022
Notes 2.500% Due 2022
Debt Instrument [Line Items]
Repayments of Debt		$ 1,100
Debt Instrument, Interest Rate, Stated Percentage		2.50%
Debt Instrument, Maturity Year Date		2022
Notes 8.750% Due 2021
Debt Instrument [Line Items]
Repayments of Debt		$ 250
Debt Instrument, Interest Rate, Stated Percentage		8.75%
Debt Instrument, Maturity Year Date		2021