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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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Debt (Schedule Of Components Of Long-Term Debt, Interest Rates, Payment Dates) (Details) - USD ($) $ in Millions	Apr. 03, 2020	Mar. 10, 2020	Mar. 05, 2020	Feb. 04, 2020	Nov. 11, 2019	Mar. 29, 2019	Feb. 09, 2017
Debt Instrument [Line Items]
Principal amount	$ 4,250					$ 4,500
Less: unamortized discount and issuance costs	(29)					(48)
Total debt	4,221					4,452
Less: current portion	(756)					(491)
Long-term debt	3,465					3,961
4.2% Senior Notes due September 15, 2020 \| Senior Notes
Debt Instrument [Line Items]
Principal amount	$ 750					$ 750
Effective interest rate (as a percent)	4.25%					4.25%
Stated interest rate (as a percent)	4.20%
Senior Term Loan A-5 due August 1, 2021 \| Senior Term Loans
Debt Instrument [Line Items]
Principal amount	$ 0					$ 500
Term loan, interest rate						4.24%
2.5% Convertible Senior Notes due April 1, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Principal amount	$ 0					$ 500
Less: unamortized discount and issuance costs						(25)
Total debt						$ 475
Effective interest rate (as a percent)						3.76%
Stated interest rate (as a percent)	2.50%	2.50%	2.50%	2.50%	2.50%
New 2.5% Convertible Senior Notes due April 1, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Principal amount	$ 250
Less: unamortized discount and issuance costs	(1)
Total debt	$ 249
Effective interest rate (as a percent)	2.63%
Stated interest rate (as a percent)	2.50%			2.50%	2.50%
3.95% Senior Notes due June 15, 2022 \| Senior Notes
Debt Instrument [Line Items]
Principal amount	$ 400					$ 400
Effective interest rate (as a percent)	4.05%					4.05%
Stated interest rate (as a percent)	3.95%						3.95%
2.0% Convertible Senior Notes due August 15, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Principal amount	$ 625					$ 1,250
Less: unamortized discount and issuance costs	(6)					(59)
Total debt	$ 619					$ 1,191
Effective interest rate (as a percent)	2.66%					2.66%
Stated interest rate (as a percent)	2.00%			2.00%	2.00%
New 2.0% Convertible Senior Notes due August 15, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Principal amount	$ 625
Less: unamortized discount and issuance costs	(9)
Total debt	$ 616
Effective interest rate (as a percent)	2.62%
Stated interest rate (as a percent)	2.00%			2.00%	2.00%
Term Loan due November 4, 2024 \| Senior Term Loans
Debt Instrument [Line Items]
Principal amount	$ 500
Term loan, interest rate	2.88%
5.0% Senior Notes due April 15, 2025 \| Senior Notes
Debt Instrument [Line Items]
Principal amount	$ 1,100					$ 1,100	$ 1,100
Effective interest rate (as a percent)	5.23%					5.23%
Stated interest rate (as a percent)	5.00%						5.00%