v3.3.1.900

Debt Senior Unsecured Notes (Details) € in Millions						3 Months Ended	12 Months Ended
	Nov. 19, 2015 USD ($)	Mar. 10, 2015 USD ($)	Mar. 03, 2014 USD ($)	Feb. 14, 2013 USD ($)	May. 17, 2011 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Mar. 10, 2015 EUR (€)
Debt Instrument [Line Items]
Debt Issuance Costs					$ 23,000,000
Senior Notes Net Proceeds					1,000,000,000
Loss on extinguishment of debt						$ (34,000,000)	$ (58,000,000)	$ (34,000,000)	$ (39,000,000)
Notes Payable, Other Payables | Senior Notes, 5.875% Due 2019
Debt Instrument [Line Items]
Senior notes issued					$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage					5.875%
Debt Instrument, Maturity Date							May 15, 2019
Loss on extinguishment of debt								$ (33,000,000)
Notes Payable, Other Payables | Senior Notes, 6.125% Due 2021
Debt Instrument [Line Items]
Senior notes issued					$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage					6.125%		6.125%
Debt Instrument, Maturity Date							May 15, 2021
Loss on extinguishment of debt							$ (52,000,000)
Notes Payable, Other Payables | Senior Notes, 5.00% Due 2023
Debt Instrument [Line Items]
Senior notes issued				$ 800,000,000
Debt Instrument, Interest Rate, Stated Percentage				5.00%			5.00%
Debt Instrument, Maturity Date				Feb. 15, 2023			Feb. 15, 2023
Debt Issuance Costs				$ 12,000,000
Notes Payable, Other Payables | Senior Notes, 4.150% Due 2024
Debt Instrument [Line Items]
Senior notes issued			$ 700,000,000
Debt Instrument, Interest Rate, Stated Percentage			4.15%				4.15%
Debt Instrument, Maturity Date			Mar. 15, 2024				Mar. 15, 2024
Debt Issuance Costs			$ 6,000,000
Debt Instrument, Price			99.649%
Debt Instrument, Interest Rate, Effective Percentage			4.193%
Notes Payable, Other Payables | Euro-Denominated Senior Notes, 1.50% Due 2025
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							1.50%			1.50%
Debt Instrument, Maturity Date		Mar. 10, 2025					Mar. 10, 2025
Debt Issuance Costs		$ 5,000,000
Debt Instrument, Price										99.54%
Debt Instrument, Interest Rate, Effective Percentage										1.55%
Notes Payable, Other Payables | 2015 Senior Notes
Debt Instrument [Line Items]
Senior notes issued	$ 1,300,000,000
Debt Issuance Costs	8,000,000
Notes Payable, Other Payables | Senior Notes, 3.15% Due 2020
Debt Instrument [Line Items]
Senior notes issued	$ 650,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.15%						3.15%
Debt Instrument, Maturity Date	Nov. 19, 2020						Nov. 19, 2020
Debt Instrument, Price	99.784%
Debt Instrument, Interest Rate, Effective Percentage	3.197%
Notes Payable, Other Payables | Senior Notes, 4.25% Due 2026
Debt Instrument [Line Items]
Senior notes issued	$ 650,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.25%						4.25%
Debt Instrument, Maturity Date	Jan. 15, 2026						Jan. 15, 2026
Debt Instrument, Price	99.942%
Debt Instrument, Interest Rate, Effective Percentage	4.256%
Designated as Hedging Instrument | Net Investment Hedging | Notes Payable, Other Payables | Euro-Denominated Senior Notes, 1.50% Due 2025
Debt Instrument [Line Items]
Senior notes issued | €										€ 700

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