Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Summary of outstanding debt

The following is a summary of outstanding debt (in millions):

As of December 31	2015		2014
5.00% Senior Notes due September 2020	599		599
4.75% Senior Notes due 2045	598		—
3.50% Senior Notes due June 2024	597		597
4.60% Senior Notes due June 2044	549		549
2.875% Senior Notes due May 2026 (EUR 500M)	545		605
8.205% Junior Subordinated Notes due January 2027	521		521
3.125% Senior Notes due May 2016	500		500
2.80% Senior Notes due 2021	399		—
4.00% Senior Notes due November 2023	349		349
6.25% Senior Notes due September 2040	298		298
4.76% Senior Notes due March 2018 (CAD 375M)	271		322
4.45% Senior Notes due May 2043	249		248
4.25% Senior Notes due December 2042	196		196
3.50% Senior Notes due September 2015	—		599
Commercial paper	50		168
Other	16		31
Total debt	5,737		5,582
Less short-term and current portion of long-term debt	562		783
Total long-term debt	$	5,175	$	4,799

Repayments of long-term debt

Repayments of total debt are as follows (in millions):

2016	$	562
2017	3
2018	271
2019	—
2020	599
Thereafter	4,302
	$	5,737