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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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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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt Facilities - Senior Notes (Details)	Sep. 30, 2017 EUR (€)	Sep. 30, 2017 USD ($)	Sep. 28, 2017 USD ($)	Sep. 20, 2017 USD ($)	Mar. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Long term debt, gross		$ 2,665,805,000				$ 1,457,964,000
Total long term debt		8,449,341,000
Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt, gross		5,781,500,000				3,850,000,000
Unamortized debt issuance costs		(64,224,000)				(39,230,000)
Total long term debt		$ 5,717,276,000				3,810,770,000
Senior Notes [Member] \| 2.875% Euro Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	2.875%	2.875%
Long term debt, gross		$ 1,181,500,000				0
Unamortized debt issuance costs	€ (13,500,000)	(16,000,000)		$ (16,300,000)
Aggregate principal debt amount issued	€ 1,000,000,000	$ 1,199,700,000
Senior Notes [Member] \| 4.875% Senior Notes due 2020 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	4.875%	4.875%	4.875%
Long term debt, gross		$ 0	$ 500,000,000.0			500,000,000
Senior Notes [Member] \| 5.375% Senior Notes due 2022 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	5.375%	5.375%
Long term debt, gross		$ 750,000,000				750,000,000
Senior Notes [Member] \| 5.375% Senior Notes due 2023 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	5.375%	5.375%
Long term debt, gross		$ 1,000,000,000				1,000,000,000
Senior Notes [Member] \| 5.750% Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	5.75%	5.75%
Long term debt, gross		$ 500,000,000				500,000,000
Senior Notes [Member] \| 5.875% Senior Notes due 2026 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	5.875%	5.875%
Long term debt, gross		$ 1,100,000,000				$ 1,100,000,000
Senior Notes [Member] \| 5.375% Senior Notes due 2027 [Member]
Debt Instrument [Line Items]
Interest rate (percent)	5.375%	5.375%
Long term debt, gross		$ 1,250,000,000
Unamortized debt issuance costs		(16,000,000)			$ (16,800,000)
Aggregate principal debt amount issued		$ 1,250,000,000