Commitments And Other Matters (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Commitments And Other Matters [Line Items]
Total amount of advances funded towards tobacco purchase		$ 115,000,000
Commitments relating to agricultural materials,capital expenditures		66,000,000
Company total exposure under guarantees		15,000,000
Face amount of guarantee including unpaid accrued interest		17,000,000	22,000,000
Fair value of the guarantees		2,000,000	2,000,000
Other contingent liabilities		2,000,000
Due period of accounts receivables		30
Allowance for doubtful accounts		5,000,000	7,000,000
Total Amount of Brazilian IPI Federal Tax Credits Made Available by Court Decision	104,000,000
Federal Taxes Offset Period	5 years
Gain on settlement of excise tax case	81,600,000	12,676,000	81,619,000	0
Gain on favorable outcome of excise tax case in Brazil, after tax	53,100,000
Diluted earnings per share calculation based on gain from excise tax case in Brazil	$ 1.87
Remaining unused tax credits on excise tax case in Brazil at current exchange rate		30,000,000
Net book value on tax credits from excise tax case after valuation allowance	90,000,000	12,700,000
Philip Morris International, Inc [Member]
Commitments And Other Matters [Line Items]
Revenues from customers		580,000,000	590,000,000	550,000,000
Imperial Tobacco Group, PLC [Member]
Commitments And Other Matters [Line Items]
Revenues from customers		280,000,000	340,000,000	330,000,000
Santa Catarina [Member]
Commitments And Other Matters [Line Items]
Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits		15,000,000
Reduction of Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits		12,000,000
Santa Catarina [Member] | Minimum [Member]
Commitments And Other Matters [Line Items]
Estimate of possible loss on remaining VAT audit assessment		0
Santa Catarina [Member] | Maximum [Member]
Commitments And Other Matters [Line Items]
Estimate of possible loss on remaining VAT audit assessment		12,000,000
Parana [Member]
Commitments And Other Matters [Line Items]
Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits		17,000,000
Parana [Member] | Minimum [Member]
Commitments And Other Matters [Line Items]
Estimate of possible loss on remaining VAT audit assessment		0
Parana [Member] | Maximum [Member]
Commitments And Other Matters [Line Items]
Estimate of possible loss on remaining VAT audit assessment		14,000,000
Fiscal Year 2015 [Member]
Commitments And Other Matters [Line Items]
Tobacco purchase contracts		555,000,000
After Fiscal Year 2015 [Member]
Commitments And Other Matters [Line Items]
Tobacco purchase contracts		$ 336,000,000