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v3.20.2

Debt - Debt Obligations (Details) - USD ($) $ in Millions | Sep. 30, 2020 | May 31, 2020 | Mar. 31, 2020 | May 31, 2018
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt including current maturities | $ 9,868.3 |  | $ 10,593.3 |
Less: Debt discount | (641.6) |  | (1,043.2) |
Less: Debt issuance costs | (49.2) |  | (67.9) |
Net long-term debt including current maturities | 9,177.5 |  | 9,482.2 |
Less: Current maturities | (996.1) |  | (608.8) |
Net long-term debt | 8,181.4 |  | 8,873.4 |
Line of Credit | Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt including current maturities | 1,919.6 |  | 2,388.5 |
Less: Debt issuance costs | (12.3) |  | (14.6) |
Line of Credit | Term Loan Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt including current maturities | 1,705.7 |  | 1,723.5 |
Less: Debt issuance costs | (13.2) |  | (14.6) |
Bridge Loan Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt including current maturities | 0.0 |  | 615.0 |
Less: Debt discount | 0.0 |  | (3.1) |
Less: Debt issuance costs | 0.0 |  | (3.1) |
Senior Indebtedness |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt including current maturities | $ 7,825.3 |  | 6,727.0 |
Less: Debt discount |  |  |  | $ (10.5)
Less: Debt issuance costs |  |  |  | $ (24.4)
Senior Indebtedness | 4.333% 2023 Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 4.333% |  |  | 4.333%
Effective Interest Rate | 4.70% |  |  |
Gross long-term debt including current maturities | $ 1,000.0 |  | 1,000.0 |
Less: Debt discount | (2.9) |  | (3.5) |
Less: Debt issuance costs | $ (6.6) |  | (7.7) |
Senior Indebtedness | 3.922% 2021 Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 3.922% |  |  | 3.922%
Effective Interest Rate | 4.50% |  |  |
Gross long-term debt including current maturities | $ 1,000.0 |  | 1,000.0 |
Less: Debt discount | (1.2) |  | (2.1) |
Less: Debt issuance costs | $ (2.7) |  | (4.8) |
Senior Indebtedness | 2.670% 2023 Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 2.67% | 2.67% |  |
Effective Interest Rate | 2.80% |  |  |
Gross long-term debt including current maturities | $ 1,000.0 |  | 0.0 |
Less: Debt discount | (2.7) |  | 0.0 |
Less: Debt issuance costs | $ (1.6) |  | 0.0 |
Senior Indebtedness | 4.250% 2025 Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 4.25% | 4.25% |  |
Effective Interest Rate | 4.60% |  |  |
Gross long-term debt including current maturities | $ 1,200.0 |  | 0.0 |
Less: Debt discount | (14.2) |  | 0.0 |
Less: Debt issuance costs | (1.9) |  | 0.0 |
Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt including current maturities | $ 2,043.0 |  | 3,866.3 |
Senior Subordinated Convertible Debt | 2017 Senior Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 1.625% |  |  |
Effective Interest Rate | 6.00% |  |  |
Fair Value of Liability Component at Issuance | $ 802.2 |  |  |
Gross long-term debt including current maturities | 1,044.3 |  | 2,070.0 |
Less: Debt discount | (239.0) |  | (504.2) |
Less: Debt issuance costs | $ (6.1) |  | (13.0) |
Senior Subordinated Convertible Debt | 2015 Senior Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 1.625% |  |  |
Effective Interest Rate | 5.90% |  |  |
Fair Value of Liability Component at Issuance | $ 262.0 |  |  |
Gross long-term debt including current maturities | 312.4 |  | 1,110.0 |
Less: Debt discount | (49.4) |  | (192.9) |
Less: Debt issuance costs | $ (1.8) |  | (7.0) |
Junior Subordinated Convertible Debt | 2017 Junior Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coupon Interest Rate | 2.25% |  |  |
Effective Interest Rate | 7.40% |  |  |
Fair Value of Liability Component at Issuance | $ 321.1 |  |  |
Gross long-term debt including current maturities | 686.3 |  | 686.3 |
Less: Debt discount | (332.2) |  | (337.4) |
Less: Debt issuance costs | $ (3.0) |  | $ (3.1) |

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