Indebtedness (Debt Issuances During Current Period) (Details) (Foreign Currency Obligations [Member]) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 One Point Eight Seven Five Percent Euro Notes Due March 2021 [Member] USD ($)	Sep. 30, 2014 One Point Eight Seven Five Percent Euro Notes Due March 2021 [Member] EUR (€)	Sep. 30, 2014 Two Point Eight Seven Five Percent Euro Note Due March 2026 [Member] USD ($)	Sep. 30, 2014 Two Point Eight Seven Five Percent Euro Note Due March 2026 [Member] EUR (€)	Sep. 30, 2014 Two Point Eight Seven Five Percent Euro Note Due May 2029 [Member] USD ($)	Sep. 30, 2014 Two Point Eight Seven Five Percent Euro Note Due May 2029 [Member] EUR (€)	Sep. 30, 2014 Point Seven Five Zero Percent Swiss Franc Note Due December 2019 [Member] USD ($)	Sep. 30, 2014 Point Seven Five Zero Percent Swiss Franc Note Due December 2019 [Member] CHF	Sep. 30, 2014 One Point Six Two Five Percent Swiss Franc Note Due May 2024 [Member] USD ($)	Sep. 30, 2014 One Point Six Two Five Percent Swiss Franc Note Due May 2024 [Member] CHF
Debt Instrument [Line Items]
Face Value	$ 1,029	€ 750	$ 1,372	€ 1,000	$ 697	€ 500	$ 311	275	$ 283	250
Interest Rate	1.875%	1.875%	2.875%	2.875%	2.875%	2.875%	0.75%	0.75%	1.625%	1.625%
Issuance	Mar. 01, 2014	Mar. 01, 2014	Mar. 01, 2014	Mar. 01, 2014	May 01, 2014	May 01, 2014	May 01, 2014	May 01, 2014	May 01, 2014	May 01, 2014
Maturity	Mar. 01, 2021	Mar. 01, 2021	Mar. 01, 2026	Mar. 01, 2026	May 01, 2029	May 01, 2029	Dec. 01, 2019	Dec. 01, 2019	May 01, 2024	May 01, 2024