Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Amount, after accumulated amortization, of debt discount.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Financial Instruments - Senior Notes Offering and Other Long-Term Debt (Details) - USD ($) $ in Millions	Aug. 20, 2021	Mar. 31, 2022	Dec. 31, 2021	May 12, 2020	Aug. 20, 2018	Sep. 12, 2017	Nov. 13, 2015	Jan. 28, 2013
Debt Instrument [Line Items]
Debt, principal amount		$ 6,650	$ 6,650
Senior Notes
Debt Instrument [Line Items]
Debt, principal amount					$ 1,500	$ 1,250	$ 1,250	$ 3,650
Debt, unamortized discount					$ 4	$ 7	$ 2	$ 10
Debt, purchase price percent due to downgrade of investment grade								101.00%
Senior Notes \| 2018 floating senior notes due 2021
Debt Instrument [Line Items]
Repayments of long-term debt	$ 300
Senior Notes \| 2020 Senior Notes
Debt Instrument [Line Items]
Debt, principal amount				$ 1,250
Original issue discount				$ 10
Senior Notes \| 2.000% 2020 senior notes due 2030
Debt Instrument [Line Items]
Debt, principal amount		$ 750	750
Interest rate percentage		2.00%
Senior Notes \| 3.000% 2020 senior notes due 2050
Debt Instrument [Line Items]
Debt, principal amount		$ 500	$ 500
Interest rate percentage		3.00%
Senior Notes \| Senior Notes 3.450% Due 2020
Debt Instrument [Line Items]
Debt, principal amount		$ 500
Interest rate percentage		3.45%
Senior Notes \| Senior Notes 3.250% Due 2021 [Member]
Debt Instrument [Line Items]
Repayments of long-term debt	$ 300