Cash payments in lieu of conversion price adjustment for convertible debt, recognized in eqiuty

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Credit facility commitment increase.

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Debt Instrument, Convertible, Conversion Ratio, Basis Of Principal Amount

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Debt Instrument, Covenant Term, Aggregate Acquisition Amount Benchmark

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No definition available.

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Debt Instrument, Covenant Term, Consolidated Leverage Ratio

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Debt Instrument, Covenant Term, Consolidated Leverage Ratio If Acquisition Incurred

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- Definition

Debt Instrument, Number of Notes

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Debt Instrument, Periodic Payment, Percent of Original Principal, Quarterly Payment Amount

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Debt Instrument, Principal Quarterly Installment Payment As Percentage Of Aggregate Principal Amount

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Debt Instrument Term Earliest Redemption

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Payments In Lieu Of Conversion Price Adjustments

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Payments In Lieu Of Conversion Price Adjustments Due To Dividend Exceeded Amount Defined

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No definition available.

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Special Dividend

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No definition available.

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- Definition

Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.

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Aggregate dividends paid during the period for each share of common stock outstanding.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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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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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

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Face (par) amount of debt instrument at time of issuance.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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The per share amount of a dividend declared, but not paid, as of the financial reporting date.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Fair value of the amount outstanding under the credit facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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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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Price of a single share of a number of saleable stocks of a company.

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No definition available.

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Debt (Narrative) (Details)									12 Months Ended
Debt (Narrative) (Details)	Mar. 10, 2020 USD ($)	Mar. 05, 2020 USD ($) $ / shares	Feb. 04, 2020 USD ($) $ / shares	Jan. 31, 2020 USD ($) $ / shares	Nov. 11, 2019 USD ($) $ / shares	Nov. 04, 2019 USD ($)	Aug. 01, 2016 USD ($) $ / shares	Mar. 04, 2016 USD ($) $ / shares	Apr. 03, 2020 USD ($) SeniorNotes $ / shares	Mar. 29, 2019 USD ($)	Mar. 30, 2018 USD ($)	Feb. 03, 2020 $ / shares	Feb. 09, 2017 USD ($)
Debt Instrument [Line Items]
Extinguishment of debt with borrowings from the same creditors									$ 1,073,000,000	$ 0	$ 0
Principal amount									4,250,000,000	4,500,000,000
Special dividend (in dollars per share) \| $ / shares				$ 12	$ 12
Payment for debt extinguishment									$ 546,000,000	0	0
Share price (in dollars per share) \| $ / shares									$ 18.29
Payment of accrued interest									$ 179,000,000	183,000,000	199,000,000
Cash dividends declared per common share (in usd per share) \| $ / shares									$ 0.125
Senior Notes
Debt Instrument [Line Items]
Number of notes \| SeniorNotes									2
Convertible Debt
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt			$ 2,000,000
Payments in lieu of conversion price adjustments									$ 11,000,000	0	$ 0
Payments in lieu of conversion price adjustments due to dividend exceeded amount defined									10,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 1,000,000,000
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Line of credit, amount outstanding									0	0
Senior Term Loan A-5 due August 1, 2021
Debt Instrument [Line Items]
Debt Instrument, face amount						500,000,000
Extinguishment of debt with borrowings from the same creditors						$ 198,000,000
Senior Term Loan A-5 due August 1, 2021 \| Senior Term Loans
Debt Instrument [Line Items]
Debt instrument term							5 years
Quarterly payment amount, percent of original total							10.00%
Principal amount									0	500,000,000
Delayed Five-Year Term Loan
Debt Instrument [Line Items]
Debt instrument term						5 years
Unused borrowing capacity						$ 750,000,000
5.0% Senior Notes due April 15, 2025 \| Senior Notes
Debt Instrument [Line Items]
Principal amount									$ 1,100,000,000	1,100,000,000			$ 1,100,000,000
Stated interest rate (as a percent)									5.00%				5.00%
Redemption price (as a percent)									100.00%
4.2% Senior Notes due September 15, 2020 \| Senior Notes
Debt Instrument [Line Items]
Principal amount									$ 750,000,000	750,000,000
Stated interest rate (as a percent)									4.20%
3.95% Senior Notes due June 15, 2022 \| Senior Notes
Debt Instrument [Line Items]
Principal amount									$ 400,000,000	400,000,000
Stated interest rate (as a percent)									3.95%				3.95%
2.5% Convertible Senior Notes due April 1, 2021 \| Convertible Debt
Debt Instrument [Line Items]
Debt Instrument, face amount								$ 500,000,000
Extinguishment of debt with borrowings from the same creditors					$ 250,000,000
Stated interest rate (as a percent)			2.50%		2.50%			2.50%				2.50%
Redemption price (as a percent)								150.00%
Conversion ratio								59.6341
Conversion ratio, basis of principal amount								$ 1,000
Conversion price (in usd per share) \| $ / shares								$ 16.77				$ 16.77
Debt instrument, term, earliest redemption								4 years
2.0% Convertible Senior Notes due August 15, 2021 \| Convertible Debt
Debt Instrument [Line Items]
Debt Instrument, face amount							$ 1,250,000,000
Extinguishment of debt with borrowings from the same creditors					$ 625,000,000
Stated interest rate (as a percent)			2.00%		2.00%		2.00%					2.00%
Conversion ratio							48.9860
Conversion ratio, basis of principal amount							$ 1,000
Conversion price (in usd per share) \| $ / shares							$ 20.41					$ 20.41
New 2.5% Convertible Senior Notes due April 1, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Principal amount									$ 250,000,000
Stated interest rate (as a percent)			2.50%		2.50%				2.50%
Cash Note Payments			$ 179,000,000
Conversion price (in usd per share) \| $ / shares			$ 16.77
Cash notes payments per share (in dollars per share) \| $ / shares					$ 12
Debt Instrument, if-converted, value in excess of principal									$ 23,000,000
New 2.0% Convertible Senior Notes due August 15, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Principal amount									$ 625,000,000
Stated interest rate (as a percent)			2.00%		2.00%				2.00%
Cash Note Payments			$ 367,000,000
Conversion price (in usd per share) \| $ / shares			$ 20.41
Cash notes payments per share (in dollars per share) \| $ / shares					$ 12
2.5% Convertible Senior Notes due April 1, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Debt Instrument, face amount		$ 250,000,000		$ 250,000,000
Principal amount									$ 0	500,000,000
Stated interest rate (as a percent)	2.50%	2.50%	2.50%		2.50%				2.50%
Exchange and extinguishment of convertible notes, equity adjustment	$ 316,000,000
Conversion ratio				118.9814
Conversion ratio, basis of principal amount				$ 1,000
Conversion price (in usd per share) \| $ / shares		$ 19	$ 8.40	$ 8.40
Payment for debt extinguishment		$ 566,000,000
Gain (loss) on extinguishment of debt	$ (1,000,000)
Payment of accrued interest		2,000,000
Payments in lieu of conversion price adjustments		$ 1,000,000
2.0% Convertible Senior Notes due August 15, 2022 \| Convertible Debt
Debt Instrument [Line Items]
Debt Instrument, face amount				$ 625,000,000
Principal amount									$ 625,000,000	$ 1,250,000,000
Stated interest rate (as a percent)			2.00%		2.00%				2.00%
Conversion ratio				97.7364
Conversion ratio, basis of principal amount				$ 1,000
Conversion price (in usd per share) \| $ / shares			$ 10.23	$ 10.23
Debt Instrument, if-converted, value in excess of principal									$ 492,000,000
Term Loan due November 4, 2024
Debt Instrument [Line Items]
Debt instrument term						5 years
Debt Instrument, face amount						$ 500,000,000
Quarterly installment payment (as a percent)						1.25%
Term Loan due November 4, 2024 \| Senior Term Loans
Debt Instrument [Line Items]
Principal amount									$ 500,000,000
Maximum
Debt Instrument [Line Items]
Credit facility commitment increase						$ 500,000,000
Maximum \| Credit Facility
Debt Instrument [Line Items]
Leverage ratio						5.25
Leverage ratio if acquisition incurred						5.75
Aggregate acquisition amount benchmark						$ 250,000,000
Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee( as a percent)						0.30%
Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee( as a percent)						0.125%
Base Rate \| Maximum \| Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate						0.75%
Base Rate \| Minimum \| Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate						0.125%
LIBOR \| Maximum \| Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate						1.75%
LIBOR \| Minimum \| Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate						1.125%