Debt and Interest Costs (Tables)

12 Months Ended

Dec. 31, 2017

Debt and Interest Costs

Schedule of long-term debt

	December 31,
($ in millions)	2017		2016
Senior Notes
5.25% due July 2025	$	1,000	$	1,000
4.375% due December 2020		1,000		1,000
4.00% due November 2023		1,000		1,000
4.375%, euro denominated, due December 2023		840		736
5.00% due March 2022		750		750
3.50%, euro denominated, due December 2020		480		421
Senior Credit Facilities, due March 2021 (at variable rates)
Term A loan, due June 2021		1,313		1,383
Term A loan, euro denominated, due June 2021		—		954
Multi-currency, U.S. dollar revolver, due March 2021		285		190
Other (including debt issuance costs)		(37)		(45)
		6,631		7,389
Less: Current portion of long-term debt		(113)		(79)
	$	6,518	$	7,310

Schedule of Debt Refinancing and Other Costs

	Years Ended December 31,
($ in millions)	2017		2016		2015
Debt Refinancing and Other Costs:
Interest expense on 3.5% and 4.375% senior notes	$	—	$	(49)	$	(5)
Refinance of bridge and revolving credit facilities		—		(30)		(16)
Economic hedge - interest rate risk		—		(20)		(16)
Amortization of unsecured, committed bridge facility financing fees		—		(7)		(23)
Redemption of 6.75% and 5.75% senior notes, due September 2020 and May 2021, respectively, and refinance of senior credit facilities		—		—		(57)
Individually insignificant items		(3)		(3)		—
	$	(3)	$	(109)	$	(117)