Amount of amortization expense attributable to debt issuance costs.

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

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

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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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Borrowings - Senior Secured Term Loan Facility Due March 2018 and September 2018 (Details) € in Millions, $ in Millions				12 Months Ended
	Dec. 05, 2016 EUR (€)	Jun. 02, 2016 USD ($)	Apr. 13, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 05, 2016 USD ($)	Oct. 14, 2016 USD ($)	Jun. 02, 2016 EUR (€)	Jun. 02, 2016 USD ($)
Debt Instrument [Line Items]
Loss on debt extinguishment				$ 70	$ 1,068	$ 274
Senior secured term loan facility \| U.S. dollar-denominated term loan due March 2021
Debt Instrument [Line Items]
Principal amount			$ 3,700					$ 4,270
Senior secured term loan facility \| U.S. dollar-denominated term loan due March 2021 \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			4.00%
Senior secured term loan facility \| U.S. dollar-denominated term loan due March 2021 \| Base rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			3.00%
Senior secured term loan facility \| Senior secured term loan facility due March 2018
Debt Instrument [Line Items]
Loss on debt extinguishment			$ 5
Senior secured term loan facility \| Senior secured term loan facility due March 2018 \| Interest expense, net
Debt Instrument [Line Items]
Amortization of debt issuance costs			$ 11
Senior secured term loan facility \| U.S. dollar-denominated term loan due July 2022
Debt Instrument [Line Items]
Principal amount							$ 2,780			$ 1,000
Senior secured term loan facility \| U.S. dollar-denominated term loan due July 2022 \| Base rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	2.00%	2.75%
Senior secured term loan facility \| Euro-denominated term loan due July 2022
Debt Instrument [Line Items]
Principal amount	€ 761								€ 311	$ 342
Senior secured term loan facility \| Senior secured term loan facility due July 2022 \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	3.00%	3.75%		3.00%
Senior secured term loan facility \| Senior secured term loan facility due July 2022 \| Base rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)				2.00%
Senior secured term loan facility \| Senior secured term loan due September 2018
Debt Instrument [Line Items]
Loss on debt extinguishment		$ 4
Senior secured term loan facility \| Senior secured term loan due September 2018 \| Interest expense, net
Debt Instrument [Line Items]
Amortization of debt issuance costs		$ 4