Derivative and Other Financial Instruments (Notional Values of Outstanding Derivative Instruments in the Consolidated Balance Sheet) (Details) - USD ($)	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Derivatives in cash flow hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivative, notional values		$ 200,000,000
Derivatives designated as hedges | Derivatives in cash flow hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivative, notional values	$ 1,030,000,000		$ 820,000,000
Derivatives designated as hedges | Derivatives in cash flow hedges | Commodities
Derivatives, Fair Value [Line Items]
Derivative, notional values	334,000,000		428,000,000
Derivatives designated as hedges | Derivatives in cash flow hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivative, notional values	200,000,000		0
Derivatives designated as hedges | Derivatives in fair value hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivative, notional values	142,000,000		74,000,000
Derivatives designated as hedges | Net Investment Hedging | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivative, notional values	1,075,000,000		875,000,000
Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivative, notional values	$ 1,017,000,000		$ 796,000,000